55155204 has 72 divisors (see below), whose sum is σ = 152472320. Its totient is φ = 16708032.

The previous prime is 55155179. The next prime is 55155227. The reversal of 55155204 is 40255155.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30477 + ... + 32235.

Almost surely, 2^55155204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55155204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76236160).

55155204 is an abundant number, since it is smaller than the sum of its proper divisors (97317116).

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

55155204 is a wasteful number, since it uses less digits than its factorization.

55155204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55155204 is about 7426.6549670764. The cubic root of 55155204 is about 380.6526273555.

It can be divided in two parts, 551 and 55204, that added together give a palindrome (55755).

The spelling of 55155204 in words is "fifty-five million, one hundred fifty-five thousand, two hundred four".