55304556 has 24 divisors (see below), whose sum is σ = 129769920. Its totient is φ = 18331152.

The previous prime is 55304549. The next prime is 55304567. The reversal of 55304556 is 65540355.

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, 10726 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (5407080).

Almost surely, 2^55304556 is an apocalyptic number.

It is an amenable number.

55304556 is an abundant number, since it is smaller than the sum of its proper divisors (74465364).

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

55304556 is a wasteful number, since it uses less digits than its factorization.

55304556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25933 (or 25931 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 55304556 is about 7436.7033018670. The cubic root of 55304556 is about 380.9959010588.

The spelling of 55304556 in words is "fifty-five million, three hundred four thousand, five hundred fifty-six".