55274120 has 64 divisors (see below), whose sum is σ = 136468800. Its totient is φ = 19982080.

The previous prime is 55274119. The next prime is 55274137. The reversal of 55274120 is 2147255.

It is a self number, because there is not a number n which added to its sum of digits gives 55274120.

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, 118127 + ... + 118593.

It is an arithmetic number, because the mean of its divisors is an integer number (2132325).

Almost surely, 2^55274120 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 55274120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68234400).

55274120 is an abundant number, since it is smaller than the sum of its proper divisors (81194680).

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

55274120 is a wasteful number, since it uses less digits than its factorization.

55274120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 55274120 is about 7434.6566833984. The cubic root of 55274120 is about 380.9259965159.

The spelling of 55274120 in words is "fifty-five million, two hundred seventy-four thousand, one hundred twenty".