25213800 has 48 divisors (see below), whose sum is σ = 78164640. Its totient is φ = 6723520.

The previous prime is 25213787. The next prime is 25213831. The reversal of 25213800 is 831252.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20412 + ... + 21611.

It is an arithmetic number, because the mean of its divisors is an integer number (1628430).

Almost surely, 2^25213800 is an apocalyptic number.

25213800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25213800 is an abundant number, since it is smaller than the sum of its proper divisors (52950840).

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

25213800 is a wasteful number, since it uses less digits than its factorization.

25213800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42042 (or 42033 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25213800 is about 5021.3344839793. The cubic root of 25213800 is about 293.2329488919.

The spelling of 25213800 in words is "twenty-five million, two hundred thirteen thousand, eight hundred".