25312505200 has 30 divisors (see below), whose sum is σ = 60813294704. Its totient is φ = 10125001920.

The previous prime is 25312505171. The next prime is 25312505213. The reversal of 25312505200 is 250521352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31640232 + ... + 31641031.

Almost surely, 2^25312505200 is an apocalyptic number.

25312505200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25312505200 is an abundant number, since it is smaller than the sum of its proper divisors (35500789504).

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

25312505200 is a wasteful number, since it uses less digits than its factorization.

25312505200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63281281 (or 63281270 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 25312505200 in words is "twenty-five billion, three hundred twelve million, five hundred five thousand, two hundred".