30253656220 has 24 divisors (see below), whose sum is σ = 63546470064. Its totient is φ = 12098835456.

The previous prime is 30253656203. The next prime is 30253656247. The reversal of 30253656220 is 2265635203.

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, 68394 + ... + 255313.

It is an arithmetic number, because the mean of its divisors is an integer number (2647769586).

Almost surely, 2^30253656220 is an apocalyptic number.

It is an amenable number.

30253656220 is an abundant number, since it is smaller than the sum of its proper divisors (33292813844).

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

30253656220 is a wasteful number, since it uses less digits than its factorization.

30253656220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328389 (or 328387 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 30253656220 in words is "thirty billion, two hundred fifty-three million, six hundred fifty-six thousand, two hundred twenty".