25305112400 has 30 divisors (see below), whose sum is σ = 60795533502. Its totient is φ = 10122044800.

The previous prime is 25305112379. The next prime is 25305112433. The reversal of 25305112400 is 421150352.

It can be written as a sum of positive squares in 3 ways, for example, as 2483776 + 25302628624 = 1576^2 + 159068^2 .

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, 31630991 + ... + 31631790.

Almost surely, 2^25305112400 is an apocalyptic number.

25305112400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25305112400 is an abundant number, since it is smaller than the sum of its proper divisors (35490421102).

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

25305112400 is a wasteful number, since it uses less digits than its factorization.

25305112400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63262799 (or 63262788 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 25305112400 its reverse (421150352), we get a palindrome (25726262752).

The spelling of 25305112400 in words is "twenty-five billion, three hundred five million, one hundred twelve thousand, four hundred".