55536330 has 32 divisors (see below), whose sum is σ = 133651584. Its totient is φ = 14769216.

The previous prime is 55536319. The next prime is 55536347. The reversal of 55536330 is 3363555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9579 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (4176612).

Almost surely, 2^55536330 is an apocalyptic number.

55536330 is an abundant number, since it is smaller than the sum of its proper divisors (78115254).

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

55536330 is a wasteful number, since it uses less digits than its factorization.

55536330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070.

The product of its (nonzero) digits is 20250, while the sum is 30.

The square root of 55536330 is about 7452.2701239287. The cubic root of 55536330 is about 381.5273935716.

Adding to 55536330 its reverse (3363555), we get a palindrome (58899885).

The spelling of 55536330 in words is "fifty-five million, five hundred thirty-six thousand, three hundred thirty".