30553880 has 32 divisors (see below), whose sum is σ = 78567840. Its totient is φ = 10475520.

The previous prime is 30553871. The next prime is 30553883. The reversal of 30553880 is 8835503.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553883) 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, 54281 + ... + 54840.

It is an arithmetic number, because the mean of its divisors is an integer number (2455245).

Almost surely, 2^30553880 is an apocalyptic number.

It is an amenable number.

30553880 is an abundant number, since it is smaller than the sum of its proper divisors (48013960).

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

30553880 is a wasteful number, since it uses less digits than its factorization.

30553880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109139 (or 109135 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 30553880 is about 5527.5564221453. The cubic root of 30553880 is about 312.6238613003.

The spelling of 30553880 in words is "thirty million, five hundred fifty-three thousand, eight hundred eighty".