525681672 has 16 divisors (see below), whose sum is σ = 1314204240. Its totient is φ = 175227216.

The previous prime is 525681661. The next prime is 525681697. The reversal of 525681672 is 276186525.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10951678 + ... + 10951725.

It is an arithmetic number, because the mean of its divisors is an integer number (82137765).

Almost surely, 2^525681672 is an apocalyptic number.

It is an amenable number.

525681672 is an abundant number, since it is smaller than the sum of its proper divisors (788522568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525681672 is a wasteful number, since it uses less digits than its factorization.

525681672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21903412 (or 21903408 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 525681672 is about 22927.7489518705. The cubic root of 525681672 is about 807.0633241109.

The spelling of 525681672 in words is "five hundred twenty-five million, six hundred eighty-one thousand, six hundred seventy-two".