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525515053 = 7219564463
BaseRepresentation
bin11111010100101…
…011100100101101
31100121211221010111
4133110223210231
52034012440203
6124051340021
716010542600
oct3724534455
91317757114
10525515053
1124a704268
12127bb1611
1384b4986b
144db18337
153120826d
hex1f52b92d

525515053 has 12 divisors (see below), whose sum is σ = 643488960. Its totient is φ = 426733272.

The previous prime is 525515041. The next prime is 525515059. The reversal of 525515053 is 350515525.

It is a happy number.

It is not a de Polignac number, because 525515053 - 29 = 525514541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525515059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281301 + ... + 283162.

It is an arithmetic number, because the mean of its divisors is an integer number (53624080).

Almost surely, 2525515053 is an apocalyptic number.

It is an amenable number.

525515053 is a deficient number, since it is larger than the sum of its proper divisors (117973907).

525515053 is a wasteful number, since it uses less digits than its factorization.

525515053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564496 (or 564489 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 525515053 is about 22924.1150974252. The cubic root of 525515053 is about 806.9780467139.

The spelling of 525515053 in words is "five hundred twenty-five million, five hundred fifteen thousand, fifty-three".

Divisors: 1 7 19 49 133 931 564463 3951241 10724797 27658687 75073579 525515053