25531134 has 16 divisors (see below), whose sum is σ = 51123072. Its totient is φ = 8500248.

The previous prime is 25531111. The next prime is 25531139. The reversal of 25531134 is 43113552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25531139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4377 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (3195192).

Almost surely, 2^25531134 is an apocalyptic number.

25531134 is an abundant number, since it is smaller than the sum of its proper divisors (25591938).

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

25531134 is a wasteful number, since it uses less digits than its factorization.

25531134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071.

The product of its digits is 1800, while the sum is 24.

The square root of 25531134 is about 5052.8342541587. The cubic root of 25531134 is about 294.4580070279.

Multiplying 25531134 by its sum of digits (24), we get a palindrome (612747216).

Adding to 25531134 its reverse (43113552), we get a palindrome (68644686).

The spelling of 25531134 in words is "twenty-five million, five hundred thirty-one thousand, one hundred thirty-four".