30572525 has 12 divisors (see below), whose sum is σ = 39218100. Its totient is φ = 23614080.

The previous prime is 30572491. The next prime is 30572567. The reversal of 30572525 is 52527503.

It can be written as a sum of positive squares in 6 ways, for example, as 1261129 + 29311396 = 1123^2 + 5414^2 .

It is not a de Polignac number, because 30572525 - 2¹² = 30568429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20360 + ... + 21809.

It is an arithmetic number, because the mean of its divisors is an integer number (3268175).

Almost surely, 2^30572525 is an apocalyptic number.

It is an amenable number.

30572525 is a deficient number, since it is larger than the sum of its proper divisors (8645575).

30572525 is a wasteful number, since it uses less digits than its factorization.

30572525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42208 (or 42203 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 30572525 is about 5529.2427148752. The cubic root of 30572525 is about 312.6874395501.

The spelling of 30572525 in words is "thirty million, five hundred seventy-two thousand, five hundred twenty-five".