55823616 has 54 divisors (see below), whose sum is σ = 160959890. Its totient is φ = 18607104.

The previous prime is 55823569. The next prime is 55823623. The reversal of 55823616 is 61632855.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 18662400 = 6096^2 + 4320^2 .

It is a super-2 number, since 2×55823616² = 6232552206630912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9811 + ... + 14418.

Almost surely, 2^55823616 is an apocalyptic number.

It is an amenable number.

55823616 is an abundant number, since it is smaller than the sum of its proper divisors (105136274).

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

55823616 is a wasteful number, since it uses less digits than its factorization.

55823616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24251 (or 24234 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55823616 is about 7471.5203272159. The cubic root of 55823616 is about 382.1841349786.

The spelling of 55823616 in words is "fifty-five million, eight hundred twenty-three thousand, six hundred sixteen".