25423402100 has 36 divisors (see below), whose sum is σ = 55179218304. Its totient is φ = 10167437280.

The previous prime is 25423402079. The next prime is 25423402127. The reversal of 25423402100 is 120432452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583679 + ... + 625721.

It is an arithmetic number, because the mean of its divisors is an integer number (1532756064).

Almost surely, 2^25423402100 is an apocalyptic number.

25423402100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25423402100 is an abundant number, since it is smaller than the sum of its proper divisors (29755816204).

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

25423402100 is a wasteful number, since it uses less digits than its factorization.

25423402100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48104 (or 48097 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 25423402100 its reverse (120432452), we get a palindrome (25543834552).

The spelling of 25423402100 in words is "twenty-five billion, four hundred twenty-three million, four hundred two thousand, one hundred".