25315132 has 24 divisors (see below), whose sum is σ = 46203696. Its totient is φ = 12125568.

The previous prime is 25315123. The next prime is 25315133. The reversal of 25315132 is 23151352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7728 + ... + 10504.

It is an arithmetic number, because the mean of its divisors is an integer number (1925154).

Almost surely, 2^25315132 is an apocalyptic number.

It is an amenable number.

25315132 is a deficient number, since it is larger than the sum of its proper divisors (20888564).

25315132 is a wasteful number, since it uses less digits than its factorization.

25315132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2875 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 25315132 is about 5031.4145128383. The cubic root of 25315132 is about 293.6252494576.

Adding to 25315132 its reverse (23151352), we get a palindrome (48466484).

The spelling of 25315132 in words is "twenty-five million, three hundred fifteen thousand, one hundred thirty-two".