55450458 has 36 divisors (see below), whose sum is σ = 139760010. Its totient is φ = 15842736.

The previous prime is 55450429. The next prime is 55450469. The reversal of 55450458 is 85405455.

55450458 is a `hidden beast` number, since 554 + 50 + 4 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53100369 + 2350089 = 7287^2 + 1533^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30553 + ... + 32316.

Almost surely, 2^55450458 is an apocalyptic number.

55450458 is an abundant number, since it is smaller than the sum of its proper divisors (84309552).

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

55450458 is a wasteful number, since it uses less digits than its factorization.

55450458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62891 (or 62881 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 55450458 is about 7446.5064291921. The cubic root of 55450458 is about 381.3306489601.

The spelling of 55450458 in words is "fifty-five million, four hundred fifty thousand, four hundred fifty-eight".