15245470057 has 4 divisors (see below), whose sum is σ = 15250699396. Its totient is φ = 15240240720.

The previous prime is 15245470013. The next prime is 15245470061. The reversal of 15245470057 is 75007454251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15232249561 + 13220496 = 123419^2 + 3636^2 .

It is a cyclic number.

It is not a de Polignac number, because 15245470057 - 2⁷ = 15245469929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15245470157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610294 + ... + 2616127.

It is an arithmetic number, because the mean of its divisors is an integer number (3812674849).

Almost surely, 2^15245470057 is an apocalyptic number.

It is an amenable number.

15245470057 is a deficient number, since it is larger than the sum of its proper divisors (5229339).

15245470057 is an equidigital number, since it uses as much as digits as its factorization.

15245470057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229338.

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 15245470057 in words is "fifteen billion, two hundred forty-five million, four hundred seventy thousand, fifty-seven".