515137505 has 16 divisors (see below), whose sum is σ = 627554304. Its totient is φ = 405894720.

The previous prime is 515137487. The next prime is 515137523. The reversal of 515137505 is 505731515.

It is an interprime number because it is at equal distance from previous prime (515137487) and next prime (515137523).

It is not a de Polignac number, because 515137505 - 2¹⁴ = 515121121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95747 + ... + 100983.

It is an arithmetic number, because the mean of its divisors is an integer number (39222144).

Almost surely, 2^515137505 is an apocalyptic number.

It is an amenable number.

515137505 is a deficient number, since it is larger than the sum of its proper divisors (112416799).

515137505 is a wasteful number, since it uses less digits than its factorization.

515137505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536.

The product of its (nonzero) digits is 13125, while the sum is 32.

The square root of 515137505 is about 22696.6408307485. The cubic root of 515137505 is about 801.6307905812.

The spelling of 515137505 in words is "five hundred fifteen million, one hundred thirty-seven thousand, five hundred five".