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253025503 = 31101211383
BaseRepresentation
bin11110001010011…
…01110011011111
3122122010000201221
433011031303133
51004233304003
641035114211
76161452453
oct1705156337
9578100657
10253025503
1111a90a895
12708a2967
1340561843
1425866663
15173307bd
hexf14dcdf

253025503 has 16 divisors (see below), whose sum is σ = 265715712. Its totient is φ = 240660000.

The previous prime is 253025497. The next prime is 253025533. The reversal of 253025503 is 305520352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-253025503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253025533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660450 + ... + 660832.

It is an arithmetic number, because the mean of its divisors is an integer number (16607232).

Almost surely, 2253025503 is an apocalyptic number.

253025503 is a deficient number, since it is larger than the sum of its proper divisors (12690209).

253025503 is a wasteful number, since it uses less digits than its factorization.

253025503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 253025503 is about 15906.7753803214. The cubic root of 253025503 is about 632.4916051316.

Adding to 253025503 its reverse (305520352), we get a palindrome (558545855).

The spelling of 253025503 in words is "two hundred fifty-three million, twenty-five thousand, five hundred three".

Divisors: 1 31 101 211 383 3131 6541 11873 21311 38683 80813 660641 1199173 2505203 8162113 253025503