25614513 has 6 divisors (see below), whose sum is σ = 36998754. Its totient is φ = 17076336.

The previous prime is 25614493. The next prime is 25614517. The reversal of 25614513 is 31541652.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 91809 = 5052^2 + 303^2 .

It is not a de Polignac number, because 25614513 - 2⁵ = 25614481 is a prime.

It is a super-2 number, since 2×25614513² = 1312206552454338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25614517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1423020 + ... + 1423037.

It is an arithmetic number, because the mean of its divisors is an integer number (6166459).

Almost surely, 2^25614513 is an apocalyptic number.

It is an amenable number.

25614513 is a deficient number, since it is larger than the sum of its proper divisors (11384241).

25614513 is a wasteful number, since it uses less digits than its factorization.

25614513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846063 (or 2846060 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 25614513 is about 5061.0782448012. The cubic root of 25614513 is about 294.7782034836.

The spelling of 25614513 in words is "twenty-five million, six hundred fourteen thousand, five hundred thirteen".