25461365 has 16 divisors (see below), whose sum is σ = 31568880. Its totient is φ = 19699200.

The previous prime is 25461347. The next prime is 25461367. The reversal of 25461365 is 56316452.

It can be written as a sum of positive squares in 8 ways, for example, as 8213956 + 17247409 = 2866^2 + 4153^2 .

It is not a de Polignac number, because 25461365 - 2⁸ = 25461109 is a prime.

It is a super-2 number, since 2×25461365² = 1296562215326450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25461367) 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, 42065 + ... + 42665.

It is an arithmetic number, because the mean of its divisors is an integer number (1973055).

Almost surely, 2^25461365 is an apocalyptic number.

It is an amenable number.

25461365 is a deficient number, since it is larger than the sum of its proper divisors (6107515).

25461365 is a wasteful number, since it uses less digits than its factorization.

25461365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its digits is 21600, while the sum is 32.

The square root of 25461365 is about 5045.9255840728. The cubic root of 25461365 is about 294.1895402644.

The spelling of 25461365 in words is "twenty-five million, four hundred sixty-one thousand, three hundred sixty-five".