25716725115 has 16 divisors (see below), whose sum is σ = 41157773568. Its totient is φ = 13711915616.

The previous prime is 25716725113. The next prime is 25716725119. The reversal of 25716725115 is 51152761752.

It is a cyclic number.

It is not a de Polignac number, because 25716725115 - 2¹ = 25716725113 is a prime.

It is a super-2 number, since 2×25716725115² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25716725113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171057 + ... + 284066.

It is an arithmetic number, because the mean of its divisors is an integer number (2572360848).

Almost surely, 2^25716725115 is an apocalyptic number.

25716725115 is a deficient number, since it is larger than the sum of its proper divisors (15441048453).

25716725115 is a wasteful number, since it uses less digits than its factorization.

25716725115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458898.

The product of its digits is 147000, while the sum is 42.

It can be divided in two parts, 257167 and 25115, that added together give a palindrome (282282).

The spelling of 25716725115 in words is "twenty-five billion, seven hundred sixteen million, seven hundred twenty-five thousand, one hundred fifteen".