55531050 has 24 divisors (see below), whose sum is σ = 137717376. Its totient is φ = 14808240.

The previous prime is 55531037. The next prime is 55531051. The reversal of 55531050 is 5013555.

It is a self number, because there is not a number n which added to its sum of digits gives 55531050.

It is not an unprimeable number, because it can be changed into a prime (55531051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184954 + ... + 185253.

It is an arithmetic number, because the mean of its divisors is an integer number (5738224).

Almost surely, 2^55531050 is an apocalyptic number.

55531050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55531050 is an abundant number, since it is smaller than the sum of its proper divisors (82186326).

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

55531050 is a wasteful number, since it uses less digits than its factorization.

55531050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370222 (or 370217 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 55531050 is about 7451.9158610387. The cubic root of 55531050 is about 381.5153022164.

The spelling of 55531050 in words is "fifty-five million, five hundred thirty-one thousand, fifty".