25345115400 has 96 divisors (see below), whose sum is σ = 85712594400. Its totient is φ = 6144268800.

The previous prime is 25345115387. The next prime is 25345115401. The reversal of 25345115400 is 451154352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25345115401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1913485 + ... + 1926684.

It is an arithmetic number, because the mean of its divisors is an integer number (892839525).

Almost surely, 2^25345115400 is an apocalyptic number.

25345115400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25345115400 is an abundant number, since it is smaller than the sum of its proper divisors (60367479000).

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

25345115400 is a wasteful number, since it uses less digits than its factorization.

25345115400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840199 (or 3840190 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 25345115400 its reverse (451154352), we get a palindrome (25796269752).

The spelling of 25345115400 in words is "twenty-five billion, three hundred forty-five million, one hundred fifteen thousand, four hundred".