2517992317 has 8 divisors (see below), whose sum is σ = 2590908120. Its totient is φ = 2446017600.

The previous prime is 2517992311. The next prime is 2517992353. The reversal of 2517992317 is 7132997152.

2517992317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 906852996 + 1611139321 = 30114^2 + 40139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2517992317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2517992311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229842 + ... + 240547.

It is an arithmetic number, because the mean of its divisors is an integer number (323863515).

Almost surely, 2^2517992317 is an apocalyptic number.

It is an amenable number.

2517992317 is a deficient number, since it is larger than the sum of its proper divisors (72915803).

2517992317 is a wasteful number, since it uses less digits than its factorization.

2517992317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470543.

The product of its digits is 238140, while the sum is 46.

The square root of 2517992317 is about 50179.6006062224. The cubic root of 2517992317 is about 1360.4569393431.

The spelling of 2517992317 in words is "two billion, five hundred seventeen million, nine hundred ninety-two thousand, three hundred seventeen".