25713507 has 4 divisors (see below), whose sum is σ = 34284680. Its totient is φ = 17142336.

The previous prime is 25713463. The next prime is 25713551. The reversal of 25713507 is 70531752.

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

It is an interprime number because it is at equal distance from previous prime (25713463) and next prime (25713551).

It is not a de Polignac number, because 25713507 - 2¹¹ = 25711459 is a prime.

It is a super-2 number, since 2×25713507² = 1322368884478098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25713577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4285582 + ... + 4285587.

It is an arithmetic number, because the mean of its divisors is an integer number (8571170).

Almost surely, 2^25713507 is an apocalyptic number.

25713507 is a deficient number, since it is larger than the sum of its proper divisors (8571173).

25713507 is an equidigital number, since it uses as much as digits as its factorization.

25713507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571172.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 25713507 is about 5070.8487455257. The cubic root of 25713507 is about 295.1574645311.

The spelling of 25713507 in words is "twenty-five million, seven hundred thirteen thousand, five hundred seven".