25629252 has 72 divisors (see below), whose sum is σ = 69266400. Its totient is φ = 7349760.

The previous prime is 25629239. The next prime is 25629257. The reversal of 25629252 is 25292652.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (25629257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27124 + ... + 28052.

Almost surely, 2^25629252 is an apocalyptic number.

25629252 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 25629252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34633200).

25629252 is an abundant number, since it is smaller than the sum of its proper divisors (43637148).

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

25629252 is a wasteful number, since it uses less digits than its factorization.

25629252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 964 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 25629252 is about 5062.5341480330. The cubic root of 25629252 is about 294.8347326717.

The spelling of 25629252 in words is "twenty-five million, six hundred twenty-nine thousand, two hundred fifty-two".