55554816 has 36 divisors (see below), whose sum is σ = 147858872. Its totient is φ = 18518016.

The previous prime is 55554773. The next prime is 55554817. The reversal of 55554816 is 61845555.

It is not an unprimeable number, because it can be changed into a prime (55554817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35401 + ... + 36936.

Almost surely, 2^55554816 is an apocalyptic number.

It is an amenable number.

55554816 is an abundant number, since it is smaller than the sum of its proper divisors (92304056).

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

55554816 is an equidigital number, since it uses as much as digits as its factorization.

55554816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72356 (or 72342 counting only the distinct ones).

The product of its digits is 120000, while the sum is 39.

The square root of 55554816 is about 7453.5103139393. The cubic root of 55554816 is about 381.5697210174.

The spelling of 55554816 in words is "fifty-five million, five hundred fifty-four thousand, eight hundred sixteen".