55023136 has 24 divisors (see below), whose sum is σ = 123802560. Its totient is φ = 23581248.

The previous prime is 55023127. The next prime is 55023139. The reversal of 55023136 is 63132055.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55023136.

It is not an unprimeable number, because it can be changed into a prime (55023139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 122596 + ... + 123043.

It is an arithmetic number, because the mean of its divisors is an integer number (5158440).

Almost surely, 2^55023136 is an apocalyptic number.

55023136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55023136 is an abundant number, since it is smaller than the sum of its proper divisors (68779424).

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

55023136 is a wasteful number, since it uses less digits than its factorization.

55023136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245656 (or 245648 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 55023136 is about 7417.7581518947. The cubic root of 55023136 is about 380.3485629088.

The spelling of 55023136 in words is "fifty-five million, twenty-three thousand, one hundred thirty-six".