55550824 has 16 divisors (see below), whose sum is σ = 119037600. Its totient is φ = 23807472.

The previous prime is 55550783. The next prime is 55550843. The reversal of 55550824 is 42805555.

It is a self number, because there is not a number n which added to its sum of digits gives 55550824.

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, 495934 + ... + 496045.

It is an arithmetic number, because the mean of its divisors is an integer number (7439850).

Almost surely, 2^55550824 is an apocalyptic number.

It is an amenable number.

55550824 is an abundant number, since it is smaller than the sum of its proper divisors (63486776).

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

55550824 is a wasteful number, since it uses less digits than its factorization.

55550824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991992 (or 991988 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 55550824 is about 7453.2425158450. The cubic root of 55550824 is about 381.5605813188.

The spelling of 55550824 in words is "fifty-five million, five hundred fifty thousand, eight hundred twenty-four".