30280025500 has 24 divisors (see below), whose sum is σ = 66131576784. Its totient is φ = 12112010000.

The previous prime is 30280025497. The next prime is 30280025537. The reversal of 30280025500 is 552008203.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30279526 + ... + 30280525.

It is an arithmetic number, because the mean of its divisors is an integer number (2755482366).

Almost surely, 2^30280025500 is an apocalyptic number.

It is an amenable number.

30280025500 is an abundant number, since it is smaller than the sum of its proper divisors (35851551284).

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

30280025500 is a wasteful number, since it uses less digits than its factorization.

30280025500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60560070 (or 60560058 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 30280025500 in words is "thirty billion, two hundred eighty million, twenty-five thousand, five hundred".