25550252 has 48 divisors (see below), whose sum is σ = 58282560. Its totient is φ = 9510912.

The previous prime is 25550243. The next prime is 25550267. The reversal of 25550252 is 25205552.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4124 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (1214220).

Almost surely, 2^25550252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25550252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29141280).

25550252 is an abundant number, since it is smaller than the sum of its proper divisors (32732308).

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

25550252 is a wasteful number, since it uses less digits than its factorization.

25550252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4168 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 25550252 is about 5054.7257096701. The cubic root of 25550252 is about 294.5314865116.

The spelling of 25550252 in words is "twenty-five million, five hundred fifty thousand, two hundred fifty-two".