55733250 has 32 divisors (see below), whose sum is σ = 139112064. Its totient is φ = 14862000.

The previous prime is 55733239. The next prime is 55733291. The reversal of 55733250 is 5233755.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36406 + ... + 37905.

It is an arithmetic number, because the mean of its divisors is an integer number (4347252).

Almost surely, 2^55733250 is an apocalyptic number.

55733250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55733250 is an abundant number, since it is smaller than the sum of its proper divisors (83378814).

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

55733250 is a wasteful number, since it uses less digits than its factorization.

55733250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74331 (or 74321 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 55733250 is about 7465.4705143079. The cubic root of 55733250 is about 381.9777999397.

The spelling of 55733250 in words is "fifty-five million, seven hundred thirty-three thousand, two hundred fifty".