55023507 has 24 divisors (see below), whose sum is σ = 99091200. Its totient is φ = 28583280.

The previous prime is 55023503. The next prime is 55023523. The reversal of 55023507 is 70532055.

It is not a de Polignac number, because 55023507 - 2² = 55023503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55023503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39007 + ... + 40392.

It is an arithmetic number, because the mean of its divisors is an integer number (4128800).

Almost surely, 2^55023507 is an apocalyptic number.

55023507 is a deficient number, since it is larger than the sum of its proper divisors (44067693).

55023507 is a wasteful number, since it uses less digits than its factorization.

55023507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79423 (or 79420 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55023507 is about 7417.7831594082. The cubic root of 55023507 is about 380.3494177553.

It can be divided in two parts, 5502 and 3507, that added together give a palindrome (9009).

The spelling of 55023507 in words is "fifty-five million, twenty-three thousand, five hundred seven".