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1057510325 = 5253798121
BaseRepresentation
bin111111000010000…
…101001110110101
32201200220002110002
4333002011032311
54131210312300
6252534041045
735130455324
oct7702051665
92650802402
101057510325
114a2a34183
122561a9185
1313b124b71
14a063c0bb
1562c915d5
hex3f0853b5

1057510325 has 12 divisors (see below), whose sum is σ = 1336056228. Its totient is φ = 830044800.

The previous prime is 1057510319. The next prime is 1057510327. The reversal of 1057510325 is 5230157501.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 24964 + 1057485361 = 158^2 + 32519^2 .

It is not a de Polignac number, because 1057510325 - 210 = 1057509301 is a prime.

It is a super-2 number, since 2×10575103252 = 2236656174963211250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057510327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397736 + ... + 400385.

It is an arithmetic number, because the mean of its divisors is an integer number (111338019).

Almost surely, 21057510325 is an apocalyptic number.

It is an amenable number.

1057510325 is a deficient number, since it is larger than the sum of its proper divisors (278545903).

1057510325 is an equidigital number, since it uses as much as digits as its factorization.

1057510325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798184 (or 798179 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 1057510325 is about 32519.3838348761. The cubic root of 1057510325 is about 1018.8139247528.

Adding to 1057510325 its reverse (5230157501), we get a palindrome (6287667826).

The spelling of 1057510325 in words is "one billion, fifty-seven million, five hundred ten thousand, three hundred twenty-five".

Divisors: 1 5 25 53 265 1325 798121 3990605 19953025 42300413 211502065 1057510325