55817274 has 32 divisors (see below), whose sum is σ = 116855424. Its totient is φ = 17740800.

The previous prime is 55817263. The next prime is 55817291. The reversal of 55817274 is 47271855.

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, 82602 + ... + 83274.

It is an arithmetic number, because the mean of its divisors is an integer number (3651732).

Almost surely, 2^55817274 is an apocalyptic number.

55817274 is an abundant number, since it is smaller than the sum of its proper divisors (61038150).

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

55817274 is a wasteful number, since it uses less digits than its factorization.

55817274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its digits is 78400, while the sum is 39.

The square root of 55817274 is about 7471.0959035472. The cubic root of 55817274 is about 382.1696613934.

The spelling of 55817274 in words is "fifty-five million, eight hundred seventeen thousand, two hundred seventy-four".