55169256 has 16 divisors (see below), whose sum is σ = 137923200. Its totient is φ = 18389744.

The previous prime is 55169197. The next prime is 55169269. The reversal of 55169256 is 65296155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149336 + ... + 1149383.

It is an arithmetic number, because the mean of its divisors is an integer number (8620200).

Almost surely, 2^55169256 is an apocalyptic number.

It is an amenable number.

55169256 is an abundant number, since it is smaller than the sum of its proper divisors (82753944).

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

55169256 is a wasteful number, since it uses less digits than its factorization.

55169256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298728 (or 2298724 counting only the distinct ones).

The product of its digits is 81000, while the sum is 39.

The square root of 55169256 is about 7427.6009585868. The cubic root of 55169256 is about 380.6849511506.

Subtracting from 55169256 its product of digits (81000), we obtain a triangular number (55088256 = T₁₀₄₉₆).

The spelling of 55169256 in words is "fifty-five million, one hundred sixty-nine thousand, two hundred fifty-six".