15055510515197 has 2 divisors, whose sum is σ = 15055510515198. Its totient is φ = 15055510515196.

The previous prime is 15055510515193. The next prime is 15055510515211. The reversal of 15055510515197 is 79151501555051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13525999528441 + 1529510986756 = 3677771^2 + 1236734^2 .

It is a cyclic number.

It is not a de Polignac number, because 15055510515197 - 2² = 15055510515193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15055510515193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7527755257598 + 7527755257599.

It is an arithmetic number, because the mean of its divisors is an integer number (7527755257599).

Almost surely, 2^{15055510515197} is an apocalyptic number.

It is an amenable number.

15055510515197 is a deficient number, since it is larger than the sum of its proper divisors (1).

15055510515197 is an equidigital number, since it uses as much as digits as its factorization.

15055510515197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 984375, while the sum is 50.

The spelling of 15055510515197 in words is "fifteen trillion, fifty-five billion, five hundred ten million, five hundred fifteen thousand, one hundred ninety-seven".