25530252 has 48 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 7696960.

The previous prime is 25530247. The next prime is 25530257. The reversal of 25530252 is 25203552.

It is an interprime number because it is at equal distance from previous prime (25530247) and next prime (25530257).

It is not an unprimeable number, because it can be changed into a prime (25530257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35149 + ... + 35867.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^25530252 is an apocalyptic number.

25530252 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 25530252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32659200).

25530252 is an abundant number, since it is smaller than the sum of its proper divisors (39788148).

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

25530252 is a wasteful number, since it uses less digits than its factorization.

25530252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 25530252 is about 5052.7469756559. The cubic root of 25530252 is about 294.4546162012.

The spelling of 25530252 in words is "twenty-five million, five hundred thirty thousand, two hundred fifty-two".