2515215137 has 2 divisors, whose sum is σ = 2515215138. Its totient is φ = 2515215136.

The previous prime is 2515215113. The next prime is 2515215139. The reversal of 2515215137 is 7315125152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220200161 + 295014976 = 47119^2 + 17176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515215137 - 2⁸ = 2515214881 is a prime.

Together with 2515215139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2515215139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257607568 + 1257607569.

It is an arithmetic number, because the mean of its divisors is an integer number (1257607569).

Almost surely, 2^2515215137 is an apocalyptic number.

It is an amenable number.

2515215137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515215137 is an equidigital number, since it uses as much as digits as its factorization.

2515215137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 32.

The square root of 2515215137 is about 50151.9205713999. The cubic root of 2515215137 is about 1359.9565904902.

The spelling of 2515215137 in words is "two billion, five hundred fifteen million, two hundred fifteen thousand, one hundred thirty-seven".