25261413 has 16 divisors (see below), whose sum is σ = 34252416. Its totient is φ = 16558400.

The previous prime is 25261409. The next prime is 25261421. The reversal of 25261413 is 31416252.

It is a cyclic number.

It is not a de Polignac number, because 25261413 - 2² = 25261409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25261403) 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, 79531 + ... + 79847.

It is an arithmetic number, because the mean of its divisors is an integer number (2140776).

Almost surely, 2^25261413 is an apocalyptic number.

It is an amenable number.

25261413 is a deficient number, since it is larger than the sum of its proper divisors (8991003).

25261413 is a wasteful number, since it uses less digits than its factorization.

25261413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its digits is 1440, while the sum is 24.

The square root of 25261413 is about 5026.0733182078. The cubic root of 25261413 is about 293.4174103286.

Adding to 25261413 its reverse (31416252), we get a palindrome (56677665).

The spelling of 25261413 in words is "twenty-five million, two hundred sixty-one thousand, four hundred thirteen".