25116400 has 30 divisors (see below), whose sum is σ = 60343112. Its totient is φ = 10046400.

The previous prime is 25116383. The next prime is 25116401. The reversal of 25116400 is 461152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25116401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30996 + ... + 31795.

Almost surely, 2^25116400 is an apocalyptic number.

25116400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25116400 is an abundant number, since it is smaller than the sum of its proper divisors (35226712).

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

25116400 is a wasteful number, since it uses less digits than its factorization.

25116400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62809 (or 62798 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 25116400 is about 5011.6264824905. The cubic root of 25116400 is about 292.8548788811.

Adding to 25116400 its reverse (461152), we get a palindrome (25577552).

It can be divided in two parts, 2511 and 6400, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 25116400 in words is "twenty-five million, one hundred sixteen thousand, four hundred".