25231132 has 6 divisors (see below), whose sum is σ = 44154488. Its totient is φ = 12615564.

The previous prime is 25231121. The next prime is 25231147. The reversal of 25231132 is 23113252.

It is a super-2 number, since 2×25231132² = 1273220044002848, which contains 22 as substring.

It is a zygodrome in base 2.

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 as a sum of consecutive naturals, namely, 3153888 + ... + 3153895.

Almost surely, 2^25231132 is an apocalyptic number.

It is an amenable number.

25231132 is a deficient number, since it is larger than the sum of its proper divisors (18923356).

25231132 is a wasteful number, since it uses less digits than its factorization.

25231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307787 (or 6307785 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 25231132 is about 5023.0600235315. The cubic root of 25231132 is about 293.3001230767.

Adding to 25231132 its reverse (23113252), we get a palindrome (48344384).

It can be divided in two parts, 2523 and 1132, that added together give a triangular number (3655 = T₈₅).

The spelling of 25231132 in words is "twenty-five million, two hundred thirty-one thousand, one hundred thirty-two".