15250320457 has 2 divisors, whose sum is σ = 15250320458. Its totient is φ = 15250320456.

The previous prime is 15250320313. The next prime is 15250320497. The reversal of 15250320457 is 75402305251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11921145856 + 3329174601 = 109184^2 + 57699^2 .

It is a cyclic number.

It is not a de Polignac number, because 15250320457 - 2³¹ = 13102836809 is a prime.

It is not a weakly prime, because it can be changed into another prime (15250320497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7625160228 + 7625160229.

It is an arithmetic number, because the mean of its divisors is an integer number (7625160229).

Almost surely, 2^15250320457 is an apocalyptic number.

It is an amenable number.

15250320457 is a deficient number, since it is larger than the sum of its proper divisors (1).

15250320457 is an equidigital number, since it uses as much as digits as its factorization.

15250320457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 15250320457 in words is "fifteen billion, two hundred fifty million, three hundred twenty thousand, four hundred fifty-seven".