25713513 has 24 divisors (see below), whose sum is σ = 43150016. Its totient is φ = 14450400.

The previous prime is 25713463. The next prime is 25713551. The reversal of 25713513 is 31531752.

It is not a de Polignac number, because 25713513 - 2⁶ = 25713449 is a prime.

It is a super-2 number, since 2×25713513² = 1322369501602338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25713313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498 + ... + 7188.

Almost surely, 2^25713513 is an apocalyptic number.

It is an amenable number.

25713513 is a deficient number, since it is larger than the sum of its proper divisors (17436503).

25713513 is a wasteful number, since it uses less digits than its factorization.

25713513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765 (or 6762 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 25713513 is about 5070.8493371426. The cubic root of 25713513 is about 295.1574874885.

It can be divided in two parts, 2571 and 3513, that added together give a square (6084 = 78²).

The spelling of 25713513 in words is "twenty-five million, seven hundred thirteen thousand, five hundred thirteen".