25710513 has 8 divisors (see below), whose sum is σ = 34792608. Its totient is φ = 16884384.

The previous prime is 25710499. The next prime is 25710533. The reversal of 25710513 is 31501752.

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

It is not a de Polignac number, because 25710513 - 2⁴ = 25710497 is a prime.

It is a super-2 number, since 2×25710513² = 1322060957446338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25710533) 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, 63756 + ... + 64157.

It is an arithmetic number, because the mean of its divisors is an integer number (4349076).

Almost surely, 2^25710513 is an apocalyptic number.

It is an amenable number.

25710513 is a deficient number, since it is larger than the sum of its proper divisors (9082095).

25710513 is a wasteful number, since it uses less digits than its factorization.

25710513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127983.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 25710513 is about 5070.5535200804. The cubic root of 25710513 is about 295.1460083504.

The spelling of 25710513 in words is "twenty-five million, seven hundred ten thousand, five hundred thirteen".