55116572 has 18 divisors (see below), whose sum is σ = 112201992. Its totient is φ = 23621304.

The previous prime is 55116563. The next prime is 55116653. The reversal of 55116572 is 27561155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140408 + ... + 140799.

It is an arithmetic number, because the mean of its divisors is an integer number (6233444).

Almost surely, 2^55116572 is an apocalyptic number.

It is an amenable number.

55116572 is an abundant number, since it is smaller than the sum of its proper divisors (57085420).

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

55116572 is a wasteful number, since it uses less digits than its factorization.

55116572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281225 (or 281216 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 55116572 is about 7424.0536097202. The cubic root of 55116572 is about 380.5637339185.

The spelling of 55116572 in words is "fifty-five million, one hundred sixteen thousand, five hundred seventy-two".