55231450 has 24 divisors (see below), whose sum is σ = 104270112. Its totient is φ = 21761520.

The previous prime is 55231447. The next prime is 55231471. The reversal of 55231450 is 5413255.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4894 + ... + 11593.

It is an arithmetic number, because the mean of its divisors is an integer number (4344588).

Almost surely, 2^55231450 is an apocalyptic number.

55231450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55231450 is a deficient number, since it is larger than the sum of its proper divisors (49038662).

55231450 is a wasteful number, since it uses less digits than its factorization.

55231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16566 (or 16561 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55231450 is about 7431.7864608720. The cubic root of 55231450 is about 380.8279500484.

The spelling of 55231450 in words is "fifty-five million, two hundred thirty-one thousand, four hundred fifty".