15256049801 has 2 divisors, whose sum is σ = 15256049802. Its totient is φ = 15256049800.

The previous prime is 15256049771. The next prime is 15256049813. The reversal of 15256049801 is 10894065251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15089665600 + 166384201 = 122840^2 + 12899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15256049801 is a prime.

It is not a weakly prime, because it can be changed into another prime (15256049821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7628024900 + 7628024901.

It is an arithmetic number, because the mean of its divisors is an integer number (7628024901).

Almost surely, 2^15256049801 is an apocalyptic number.

It is an amenable number.

15256049801 is a deficient number, since it is larger than the sum of its proper divisors (1).

15256049801 is an equidigital number, since it uses as much as digits as its factorization.

15256049801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 15256049801 in words is "fifteen billion, two hundred fifty-six million, forty-nine thousand, eight hundred one".