25312461 has 16 divisors (see below), whose sum is σ = 35586048. Its totient is φ = 15980400.

The previous prime is 25312451. The next prime is 25312481. The reversal of 25312461 is 16421352.

It is not a de Polignac number, because 25312461 - 2¹⁸ = 25050317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312451) 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, 1476 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (2224128).

Almost surely, 2^25312461 is an apocalyptic number.

It is an amenable number.

25312461 is a deficient number, since it is larger than the sum of its proper divisors (10273587).

25312461 is a wasteful number, since it uses less digits than its factorization.

25312461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872.

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

The square root of 25312461 is about 5031.1490735219. The cubic root of 25312461 is about 293.6149222927.

The spelling of 25312461 in words is "twenty-five million, three hundred twelve thousand, four hundred sixty-one".