55002204 has 18 divisors (see below), whose sum is σ = 139033440. Its totient is φ = 18334056.

The previous prime is 55002179. The next prime is 55002221. The reversal of 55002204 is 40220055.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 763884 + ... + 763955.

It is an arithmetic number, because the mean of its divisors is an integer number (7724080).

Almost surely, 2^55002204 is an apocalyptic number.

It is an amenable number.

55002204 is an abundant number, since it is smaller than the sum of its proper divisors (84031236).

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

55002204 is a wasteful number, since it uses less digits than its factorization.

55002204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527849 (or 1527844 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 55002204 is about 7416.3470792567. The cubic root of 55002204 is about 380.3003258308.

Adding to 55002204 its reverse (40220055), we get a palindrome (95222259).

The spelling of 55002204 in words is "fifty-five million, two thousand, two hundred four".