25312134 has 32 divisors (see below), whose sum is σ = 51788160. Its totient is φ = 8245952.

The previous prime is 25312117. The next prime is 25312141. The reversal of 25312134 is 43121352.

It is a self number, because there is not a number n which added to its sum of digits gives 25312134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56917 + ... + 57359.

It is an arithmetic number, because the mean of its divisors is an integer number (1618380).

Almost surely, 2^25312134 is an apocalyptic number.

25312134 is an abundant number, since it is smaller than the sum of its proper divisors (26476026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25312134 is a wasteful number, since it uses less digits than its factorization.

25312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its digits is 720, while the sum is 21.

The square root of 25312134 is about 5031.1165758706. The cubic root of 25312134 is about 293.6136579287.

Adding to 25312134 its reverse (43121352), we get a palindrome (68433486).

The spelling of 25312134 in words is "twenty-five million, three hundred twelve thousand, one hundred thirty-four".