25620232 has 32 divisors (see below), whose sum is σ = 52905600. Its totient is φ = 11534400.

The previous prime is 25620223. The next prime is 25620239. The reversal of 25620232 is 23202652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (25620239) 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, 8257 + ... + 10927.

It is an arithmetic number, because the mean of its divisors is an integer number (1653300).

Almost surely, 2^25620232 is an apocalyptic number.

25620232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25620232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26452800).

25620232 is an abundant number, since it is smaller than the sum of its proper divisors (27285368).

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

25620232 is a wasteful number, since it uses less digits than its factorization.

25620232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 25620232 is about 5061.6432114482. The cubic root of 25620232 is about 294.8001404105.

Adding to 25620232 its reverse (23202652), we get a palindrome (48822884).

It can be divided in two parts, 25620 and 232, that added together give a palindrome (25852).

The spelling of 25620232 in words is "twenty-five million, six hundred twenty thousand, two hundred thirty-two".