30540525 has 12 divisors (see below), whose sum is σ = 50493792. Its totient is φ = 16288240.

The previous prime is 30540493. The next prime is 30540529. The reversal of 30540525 is 52504503.

It is not a de Polignac number, because 30540525 - 2⁵ = 30540493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30540495 and 30540504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203529 + ... + 203678.

It is an arithmetic number, because the mean of its divisors is an integer number (4207816).

Almost surely, 2^30540525 is an apocalyptic number.

It is an amenable number.

30540525 is a deficient number, since it is larger than the sum of its proper divisors (19953267).

30540525 is a wasteful number, since it uses less digits than its factorization.

30540525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407220 (or 407215 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30540525 is about 5526.3482517844. The cubic root of 30540525 is about 312.5783057100.

The spelling of 30540525 in words is "thirty million, five hundred forty thousand, five hundred twenty-five".