525616641 has 32 divisors (see below), whose sum is σ = 852681600. Its totient is φ = 317355840.

The previous prime is 525616633. The next prime is 525616643. The reversal of 525616641 is 146616525.

525616641 is a `hidden beast` number, since 5 + 2 + 5 + 6 + 1 + 6 + 641 = 666.

It is not a de Polignac number, because 525616641 - 2³ = 525616633 is a prime.

It is a super-2 number, since 2×525616641² = 552545706592245762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525616596 and 525616605.

It is not an unprimeable number, because it can be changed into a prime (525616643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79075 + ... + 85463.

It is an arithmetic number, because the mean of its divisors is an integer number (26646300).

Almost surely, 2^525616641 is an apocalyptic number.

It is an amenable number.

525616641 is a deficient number, since it is larger than the sum of its proper divisors (327064959).

525616641 is a wasteful number, since it uses less digits than its factorization.

525616641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6686 (or 6680 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 525616641 is about 22926.3307356411. The cubic root of 525616641 is about 807.0300426897.

The spelling of 525616641 in words is "five hundred twenty-five million, six hundred sixteen thousand, six hundred forty-one".