25290752 has 48 divisors (see below), whose sum is σ = 51744420. Its totient is φ = 12353536.

The previous prime is 25290743. The next prime is 25290757. The reversal of 25290752 is 25709252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 50176 = 5024^2 + 224^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (25290757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108428 + ... + 108660.

Almost surely, 2^25290752 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 25290752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25872210).

25290752 is an abundant number, since it is smaller than the sum of its proper divisors (26453668).

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

25290752 is an equidigital number, since it uses as much as digits as its factorization.

25290752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 25290752 is about 5028.9911513145. The cubic root of 25290752 is about 293.5309595698.

The spelling of 25290752 in words is "twenty-five million, two hundred ninety thousand, seven hundred fifty-two".