55553372 has 24 divisors (see below), whose sum is σ = 115938816. Its totient is φ = 22773168.

The previous prime is 55553369. The next prime is 55553387. The reversal of 55553372 is 27335555.

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, 42488 + ... + 43775.

It is an arithmetic number, because the mean of its divisors is an integer number (4830784).

Almost surely, 2^55553372 is an apocalyptic number.

It is an amenable number.

55553372 is an abundant number, since it is smaller than the sum of its proper divisors (60385444).

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

55553372 is a wasteful number, since it uses less digits than its factorization.

55553372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86297 (or 86295 counting only the distinct ones).

The product of its digits is 78750, while the sum is 35.

The square root of 55553372 is about 7453.4134462003. The cubic root of 55553372 is about 381.5664150247.

The spelling of 55553372 in words is "fifty-five million, five hundred fifty-three thousand, three hundred seventy-two".