15042245257 has 8 divisors (see below), whose sum is σ = 16203680640. Its totient is φ = 13881429840.

The previous prime is 15042245177. The next prime is 15042245311. The reversal of 15042245257 is 75254224051.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15042245257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15042245357) 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, 103969 + ... + 202222.

It is an arithmetic number, because the mean of its divisors is an integer number (2025460080).

Almost surely, 2^15042245257 is an apocalyptic number.

It is an amenable number.

15042245257 is a deficient number, since it is larger than the sum of its proper divisors (1161435383).

15042245257 is a wasteful number, since it uses less digits than its factorization.

15042245257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309983.

The product of its (nonzero) digits is 112000, while the sum is 37.

The spelling of 15042245257 in words is "fifteen billion, forty-two million, two hundred forty-five thousand, two hundred fifty-seven".