25621134 has 32 divisors (see below), whose sum is σ = 63887616. Its totient is φ = 6654720.

The previous prime is 25621129. The next prime is 25621151. The reversal of 25621134 is 43112652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27267 + ... + 28190.

It is an arithmetic number, because the mean of its divisors is an integer number (1996488).

Almost surely, 2^25621134 is an apocalyptic number.

25621134 is an abundant number, since it is smaller than the sum of its proper divisors (38266482).

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

25621134 is a wasteful number, since it uses less digits than its factorization.

25621134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55480.

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

The square root of 25621134 is about 5061.7323121635. The cubic root of 25621134 is about 294.8036000019.

Adding to 25621134 its reverse (43112652), we get a palindrome (68733786).

The spelling of 25621134 in words is "twenty-five million, six hundred twenty-one thousand, one hundred thirty-four".