15151275251 has 12 divisors (see below), whose sum is σ = 17647112448. Its totient is φ = 12970479312.

The previous prime is 15151275169. The next prime is 15151275263. The reversal of 15151275251 is 15257215151.

It is not a de Polignac number, because 15151275251 - 2¹⁰ = 15151274227 is a prime.

It is a super-2 number, since 2×15151275251² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15151275851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154931 + ... + 233036.

It is an arithmetic number, because the mean of its divisors is an integer number (1470592704).

Almost surely, 2^15151275251 is an apocalyptic number.

15151275251 is a deficient number, since it is larger than the sum of its proper divisors (2495837197).

15151275251 is an equidigital number, since it uses as much as digits as its factorization.

15151275251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388778 (or 388771 counting only the distinct ones).

The product of its digits is 17500, while the sum is 35.

The spelling of 15151275251 in words is "fifteen billion, one hundred fifty-one million, two hundred seventy-five thousand, two hundred fifty-one".