2515985137 has 2 divisors, whose sum is σ = 2515985138. Its totient is φ = 2515985136.

The previous prime is 2515985119. The next prime is 2515985179. The reversal of 2515985137 is 7315895152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2510410816 + 5574321 = 50104^2 + 2361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2515985137 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515985837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257992568 + 1257992569.

It is an arithmetic number, because the mean of its divisors is an integer number (1257992569).

Almost surely, 2^2515985137 is an apocalyptic number.

It is an amenable number.

2515985137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515985137 is an equidigital number, since it uses as much as digits as its factorization.

2515985137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 46.

The square root of 2515985137 is about 50159.5966590642. The cubic root of 2515985137 is about 1360.0953539328.

The spelling of 2515985137 in words is "two billion, five hundred fifteen million, nine hundred eighty-five thousand, one hundred thirty-seven".