2657315231 has 4 divisors (see below), whose sum is σ = 2683114512. Its totient is φ = 2631515952.

The previous prime is 2657315209. The next prime is 2657315233. The reversal of 2657315231 is 1325137562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2657315231 is a prime.

It is a super-3 number, since 3×2657315231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2657315191 and 2657315200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657315233) 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 in 3 ways as a sum of consecutive naturals, for example, 12899486 + ... + 12899691.

It is an arithmetic number, because the mean of its divisors is an integer number (670778628).

Almost surely, 2^2657315231 is an apocalyptic number.

2657315231 is a deficient number, since it is larger than the sum of its proper divisors (25799281).

2657315231 is a wasteful number, since it uses less digits than its factorization.

2657315231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25799280.

The product of its digits is 37800, while the sum is 35.

The square root of 2657315231 is about 51549.1535430020. The cubic root of 2657315231 is about 1385.0996693511.

The spelling of 2657315231 in words is "two billion, six hundred fifty-seven million, three hundred fifteen thousand, two hundred thirty-one".