55457836 has 12 divisors (see below), whose sum is σ = 110915728. Its totient is φ = 23767632.

The previous prime is 55457821. The next prime is 55457849. The reversal of 55457836 is 63875455.

55457836 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55457792 and 55457801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990291 + ... + 990346.

Almost surely, 2^55457836 is an apocalyptic number.

It is an amenable number.

55457836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55457836 is a wasteful number, since it uses less digits than its factorization.

55457836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980648 (or 1980646 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 55457836 is about 7447.0018128103. The cubic root of 55457836 is about 381.3475609500.

The spelling of 55457836 in words is "fifty-five million, four hundred fifty-seven thousand, eight hundred thirty-six".