25330400 has 36 divisors (see below), whose sum is σ = 61839792. Its totient is φ = 10131840.

The previous prime is 25330399. The next prime is 25330423. The reversal of 25330400 is 403352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15032 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (1717772).

Almost surely, 2^25330400 is an apocalyptic number.

25330400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25330400 is an abundant number, since it is smaller than the sum of its proper divisors (36509392).

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

25330400 is a wasteful number, since it uses less digits than its factorization.

25330400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31683 (or 31670 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 25330400 is about 5032.9315512929. The cubic root of 25330400 is about 293.6842677730.

Adding to 25330400 its reverse (403352), we get a palindrome (25733752).

The spelling of 25330400 in words is "twenty-five million, three hundred thirty thousand, four hundred".