525531028 has 24 divisors (see below), whose sum is σ = 1003867200. Its totient is φ = 238739520.

The previous prime is 525531001. The next prime is 525531031. The reversal of 525531028 is 820135525.

It is a super-2 number, since 2×525531028² = 552365722781473568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150025 + ... + 153487.

It is an arithmetic number, because the mean of its divisors is an integer number (41827800).

Almost surely, 2^525531028 is an apocalyptic number.

It is an amenable number.

525531028 is a deficient number, since it is larger than the sum of its proper divisors (478336172).

525531028 is a wasteful number, since it uses less digits than its factorization.

525531028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6927 (or 6925 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 525531028 is about 22924.4635269836. The cubic root of 525531028 is about 806.9862236720.

The spelling of 525531028 in words is "five hundred twenty-five million, five hundred thirty-one thousand, twenty-eight".