25120125200 has 30 divisors (see below), whose sum is σ = 60351101754. Its totient is φ = 10048049920.

The previous prime is 25120125197. The next prime is 25120125223. The reversal of 25120125200 is 252102152.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 172554496 + 24947570704 = 13136^2 + 157948^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 31399757 + ... + 31400556.

Almost surely, 2^25120125200 is an apocalyptic number.

25120125200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25120125200 is an abundant number, since it is smaller than the sum of its proper divisors (35230976554).

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

25120125200 is a wasteful number, since it uses less digits than its factorization.

25120125200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62800331 (or 62800320 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 25120125200 its reverse (252102152), we get a palindrome (25372227352).

The spelling of 25120125200 in words is "twenty-five billion, one hundred twenty million, one hundred twenty-five thousand, two hundred".