15172544057 has 8 divisors (see below), whose sum is σ = 16678217952. Its totient is φ = 13687928800.

The previous prime is 15172544053. The next prime is 15172544087. The reversal of 15172544057 is 75044527151.

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

It is a cyclic number.

It is not a de Polignac number, because 15172544057 - 2² = 15172544053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15172544053) 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, 5263148 + ... + 5266029.

It is an arithmetic number, because the mean of its divisors is an integer number (2084777244).

Almost surely, 2^15172544057 is an apocalyptic number.

It is an amenable number.

15172544057 is a deficient number, since it is larger than the sum of its proper divisors (1505673895).

15172544057 is a wasteful number, since it uses less digits than its factorization.

15172544057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529319.

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 15172544057 in words is "fifteen billion, one hundred seventy-two million, five hundred forty-four thousand, fifty-seven".