30500525 has 24 divisors (see below), whose sum is σ = 41541984. Its totient is φ = 22030400.

The previous prime is 30500521. The next prime is 30500527. The reversal of 30500525 is 52500503.

It is not a de Polignac number, because 30500525 - 2² = 30500521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30500497 and 30500506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53894 + ... + 54456.

It is an arithmetic number, because the mean of its divisors is an integer number (1730916).

Almost surely, 2^30500525 is an apocalyptic number.

It is an amenable number.

30500525 is a deficient number, since it is larger than the sum of its proper divisors (11041459).

30500525 is a wasteful number, since it uses less digits than its factorization.

30500525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30500525 is about 5522.7280396558. The cubic root of 30500525 is about 312.4417811545.

The spelling of 30500525 in words is "thirty million, five hundred thousand, five hundred twenty-five".