25252860 has 48 divisors (see below), whose sum is σ = 71517600. Its totient is φ = 6657024.

The previous prime is 25252849. The next prime is 25252867. The reversal of 25252860 is 6825252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2976 + ... + 7704.

It is an arithmetic number, because the mean of its divisors is an integer number (1489950).

Almost surely, 2^25252860 is an apocalyptic number.

25252860 is a gapful number since it is divisible by the number (20) 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 25252860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35758800).

25252860 is an abundant number, since it is smaller than the sum of its proper divisors (46264740).

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

25252860 is a wasteful number, since it uses less digits than its factorization.

25252860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 25252860 is about 5025.2223831389. Note that the first 3 decimals coincide. The cubic root of 25252860 is about 293.3842915372.

The spelling of 25252860 in words is "twenty-five million, two hundred fifty-two thousand, eight hundred sixty".