15201512551 has 2 divisors, whose sum is σ = 15201512552. Its totient is φ = 15201512550.

The previous prime is 15201512527. The next prime is 15201512593. The reversal of 15201512551 is 15521510251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15201512551 - 2⁷ = 15201512423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15201515551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600756275 + 7600756276.

It is an arithmetic number, because the mean of its divisors is an integer number (7600756276).

Almost surely, 2^15201512551 is an apocalyptic number.

15201512551 is a deficient number, since it is larger than the sum of its proper divisors (1).

15201512551 is an equidigital number, since it uses as much as digits as its factorization.

15201512551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 15201512551 in words is "fifteen billion, two hundred one million, five hundred twelve thousand, five hundred fifty-one".