15240241057 has 2 divisors, whose sum is σ = 15240241058. Its totient is φ = 15240241056.

The previous prime is 15240241021. The next prime is 15240241063. The reversal of 15240241057 is 75014204251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15172326976 + 67914081 = 123176^2 + 8241^2 .

It is a cyclic number.

It is not a de Polignac number, because 15240241057 - 2³¹ = 13092757409 is a prime.

It is not a weakly prime, because it can be changed into another prime (15240241097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620120528 + 7620120529.

It is an arithmetic number, because the mean of its divisors is an integer number (7620120529).

Almost surely, 2^15240241057 is an apocalyptic number.

It is an amenable number.

15240241057 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240241057 is an equidigital number, since it uses as much as digits as its factorization.

15240241057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 15240241057 in words is "fifteen billion, two hundred forty million, two hundred forty-one thousand, fifty-seven".