55022552 has 64 divisors (see below), whose sum is σ = 116188800. Its totient is φ = 24261120.

The previous prime is 55022543. The next prime is 55022567. The reversal of 55022552 is 25522055.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303902 + ... + 304082.

It is an arithmetic number, because the mean of its divisors is an integer number (1815450).

Almost surely, 2^55022552 is an apocalyptic number.

55022552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55022552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58094400).

55022552 is an abundant number, since it is smaller than the sum of its proper divisors (61166248).

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

55022552 is a wasteful number, since it uses less digits than its factorization.

55022552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 55022552 is about 7417.7187867969. The cubic root of 55022552 is about 380.3472172667.

The spelling of 55022552 in words is "fifty-five million, twenty-two thousand, five hundred fifty-two".