5571242172 has 36 divisors (see below), whose sum is σ = 14118018096. Its totient is φ = 1852444800.

The previous prime is 5571242167. The next prime is 5571242231. The reversal of 5571242172 is 2712421755.

5571242172 is a `hidden beast` number, since 557 + 12 + 4 + 21 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178528 + ... + 207399.

Almost surely, 2^5571242172 is an apocalyptic number.

It is an amenable number.

5571242172 is an abundant number, since it is smaller than the sum of its proper divisors (8546775924).

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

5571242172 is a wasteful number, since it uses less digits than its factorization.

5571242172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386338 (or 386333 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 5571242172 is about 74640.7540958691. The cubic root of 5571242172 is about 1772.7630005695.

The spelling of 5571242172 in words is "five billion, five hundred seventy-one million, two hundred forty-two thousand, one hundred seventy-two".