30525500 has 24 divisors (see below), whose sum is σ = 66668784. Its totient is φ = 12210000.

The previous prime is 30525497. The next prime is 30525503. The reversal of 30525500 is 552503.

It is an interprime number because it is at equal distance from previous prime (30525497) and next prime (30525503).

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30026 + ... + 31025.

It is an arithmetic number, because the mean of its divisors is an integer number (2777866).

Almost surely, 2^30525500 is an apocalyptic number.

It is an amenable number.

30525500 is an abundant number, since it is smaller than the sum of its proper divisors (36143284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30525500 is a wasteful number, since it uses less digits than its factorization.

30525500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61070 (or 61058 counting only the distinct ones).

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

The square root of 30525500 is about 5524.9886877712. The cubic root of 30525500 is about 312.5270376606.

The spelling of 30525500 in words is "thirty million, five hundred twenty-five thousand, five hundred".