55365576 has 32 divisors (see below), whose sum is σ = 158187840. Its totient is φ = 15818688.

The previous prime is 55365551. The next prime is 55365641. The reversal of 55365576 is 67556355.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164611 + ... + 164946.

It is an arithmetic number, because the mean of its divisors is an integer number (4943370).

Almost surely, 2^55365576 is an apocalyptic number.

55365576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55365576 is an abundant number, since it is smaller than the sum of its proper divisors (102822264).

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

55365576 is a wasteful number, since it uses less digits than its factorization.

55365576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329573 (or 329569 counting only the distinct ones).

The product of its digits is 472500, while the sum is 42.

The square root of 55365576 is about 7440.8047951818. The cubic root of 55365576 is about 381.1359728508.

The spelling of 55365576 in words is "fifty-five million, three hundred sixty-five thousand, five hundred seventy-six".