521725675 has 24 divisors (see below), whose sum is σ = 677679840. Its totient is φ = 397689600.

The previous prime is 521725669. The next prime is 521725681. The reversal of 521725675 is 576527125.

It is an interprime number because it is at equal distance from previous prime (521725669) and next prime (521725681).

It is not a de Polignac number, because 521725675 - 2³ = 521725667 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159961 + ... + 163189.

It is an arithmetic number, because the mean of its divisors is an integer number (28236660).

Almost surely, 2^521725675 is an apocalyptic number.

521725675 is a deficient number, since it is larger than the sum of its proper divisors (155954165).

521725675 is a wasteful number, since it uses less digits than its factorization.

521725675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3538 counting only the distinct ones).

The product of its digits is 147000, while the sum is 40.

The square root of 521725675 is about 22841.3150891099. The cubic root of 521725675 is about 805.0337164228.

The spelling of 521725675 in words is "five hundred twenty-one million, seven hundred twenty-five thousand, six hundred seventy-five".