25843425100 has 18 divisors (see below), whose sum is σ = 56080232684. Its totient is φ = 10337370000.

The previous prime is 25843425067. The next prime is 25843425133. The reversal of 25843425100 is 152434852.

It is an interprime number because it is at equal distance from previous prime (25843425067) and next prime (25843425133).

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, 129217026 + ... + 129217225.

Almost surely, 2^25843425100 is an apocalyptic number.

25843425100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25843425100 is an abundant number, since it is smaller than the sum of its proper divisors (30236807584).

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

25843425100 is a wasteful number, since it uses less digits than its factorization.

25843425100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258434265 (or 258434258 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 25843425100 its reverse (152434852), we get a palindrome (25995859952).

The spelling of 25843425100 in words is "twenty-five billion, eight hundred forty-three million, four hundred twenty-five thousand, one hundred".