55872147 has 8 divisors (see below), whose sum is σ = 74598400. Its totient is φ = 37197000.

The previous prime is 55872127. The next prime is 55872161. The reversal of 55872147 is 74127855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55872147 - 2⁸ = 55871891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55872127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10147 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (9324800).

Almost surely, 2^55872147 is an apocalyptic number.

55872147 is a deficient number, since it is larger than the sum of its proper divisors (18726253).

55872147 is a wasteful number, since it uses less digits than its factorization.

55872147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25553.

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

The square root of 55872147 is about 7474.7673542392. The cubic root of 55872147 is about 382.2948551794.

The spelling of 55872147 in words is "fifty-five million, eight hundred seventy-two thousand, one hundred forty-seven".