15245331551 has 2 divisors, whose sum is σ = 15245331552. Its totient is φ = 15245331550.

The previous prime is 15245331539. The next prime is 15245331589. The reversal of 15245331551 is 15513354251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15245331551 - 2³⁰ = 14171589727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15245337551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7622665775 + 7622665776.

It is an arithmetic number, because the mean of its divisors is an integer number (7622665776).

Almost surely, 2^15245331551 is an apocalyptic number.

15245331551 is a deficient number, since it is larger than the sum of its proper divisors (1).

15245331551 is an equidigital number, since it uses as much as digits as its factorization.

15245331551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 35.

The spelling of 15245331551 in words is "fifteen billion, two hundred forty-five million, three hundred thirty-one thousand, five hundred fifty-one".