15125650247 has 2 divisors, whose sum is σ = 15125650248. Its totient is φ = 15125650246.

The previous prime is 15125650187. The next prime is 15125650277. The reversal of 15125650247 is 74205652151.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15125650247 is a prime.

It is a super-2 number, since 2×15125650247² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15125650247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15125650277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7562825123 + 7562825124.

It is an arithmetic number, because the mean of its divisors is an integer number (7562825124).

Almost surely, 2^15125650247 is an apocalyptic number.

15125650247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15125650247 is an equidigital number, since it uses as much as digits as its factorization.

15125650247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 15125650247 in words is "fifteen billion, one hundred twenty-five million, six hundred fifty thousand, two hundred forty-seven".