25345113100 has 18 divisors (see below), whose sum is σ = 54998895644. Its totient is φ = 10138045200.

The previous prime is 25345113071. The next prime is 25345113103. The reversal of 25345113100 is 131154352.

It is a happy number.

It is a super-2 number, since 2×25345113100² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (25345113103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126725466 + ... + 126725665.

Almost surely, 2^25345113100 is an apocalyptic number.

25345113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25345113100 is an abundant number, since it is smaller than the sum of its proper divisors (29653782544).

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

25345113100 is a wasteful number, since it uses less digits than its factorization.

25345113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253451145 (or 253451138 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 25345113100 its reverse (131154352), we get a palindrome (25476267452).

The spelling of 25345113100 in words is "twenty-five billion, three hundred forty-five million, one hundred thirteen thousand, one hundred".