25442232 has 32 divisors (see below), whose sum is σ = 66372480. Its totient is φ = 8111840.

The previous prime is 25442231. The next prime is 25442233. The reversal of 25442232 is 23224452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25442231) and next prime (25442233).

It is a super-3 number, since 3×25442232³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442231) 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, 22494 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (2074140).

Almost surely, 2^25442232 is an apocalyptic number.

It is an amenable number.

25442232 is an abundant number, since it is smaller than the sum of its proper divisors (40930248).

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

25442232 is a wasteful number, since it uses less digits than its factorization.

25442232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46123 (or 46119 counting only the distinct ones).

The product of its digits is 3840, while the sum is 24.

The square root of 25442232 is about 5044.0293417069. The cubic root of 25442232 is about 294.1158320013.

Adding to 25442232 its reverse (23224452), we get a palindrome (48666684).

It can be divided in two parts, 254 and 42232, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 25442232 in words is "twenty-five million, four hundred forty-two thousand, two hundred thirty-two".