55022506 has 32 divisors (see below), whose sum is σ = 108957312. Its totient is φ = 20175360.

The previous prime is 55022491. The next prime is 55022507. The reversal of 55022506 is 60522055.

It is not an unprimeable number, because it can be changed into a prime (55022507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7891 + ... + 13126.

It is an arithmetic number, because the mean of its divisors is an integer number (3404916).

Almost surely, 2^55022506 is an apocalyptic number.

55022506 is a deficient number, since it is larger than the sum of its proper divisors (53934806).

55022506 is a wasteful number, since it uses less digits than its factorization.

55022506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21054.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55022506 is about 7417.7156861125. The cubic root of 55022506 is about 380.3471112739.

It can be divided in two parts, 5502 and 2506, that added together give a palindrome (8008).

The spelling of 55022506 in words is "fifty-five million, twenty-two thousand, five hundred six".