25312401 has 12 divisors (see below), whose sum is σ = 36974340. Its totient is φ = 16684800.

The previous prime is 25312387. The next prime is 25312451. The reversal of 25312401 is 10421352.

25312401 is a `hidden beast` number, since 253 + 12 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14814801 + 10497600 = 3849^2 + 3240^2 .

It is not a de Polignac number, because 25312401 - 2¹⁸ = 25050257 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 15000 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (3081195).

Almost surely, 2^25312401 is an apocalyptic number.

It is an amenable number.

25312401 is a deficient number, since it is larger than the sum of its proper divisors (11661939).

25312401 is a wasteful number, since it uses less digits than its factorization.

25312401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31696 (or 31693 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 25312401 is about 5031.1431106658. The cubic root of 25312401 is about 293.6146903001.

Adding to 25312401 its reverse (10421352), we get a palindrome (35733753).

The spelling of 25312401 in words is "twenty-five million, three hundred twelve thousand, four hundred one".