55368628 has 18 divisors (see below), whose sum is σ = 112715106. Its totient is φ = 23729328.

The previous prime is 55368617. The next prime is 55368629. The reversal of 55368628 is 82686355.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40220964 + 15147664 = 6342^2 + 3892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55368629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141051 + ... + 141442.

Almost surely, 2^55368628 is an apocalyptic number.

It is an amenable number.

55368628 is an abundant number, since it is smaller than the sum of its proper divisors (57346478).

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

55368628 is a wasteful number, since it uses less digits than its factorization.

55368628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282511 (or 282502 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 55368628 is about 7441.0098776981. The cubic root of 55368628 is about 381.1429760328.

The spelling of 55368628 in words is "fifty-five million, three hundred sixty-eight thousand, six hundred twenty-eight".