25454252100 has 36 divisors (see below), whose sum is σ = 73647636944. Its totient is φ = 6787800480.

The previous prime is 25454252077. The next prime is 25454252119. The reversal of 25454252100 is 125245452.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42423454 + ... + 42424053.

Almost surely, 2^25454252100 is an apocalyptic number.

25454252100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25454252100 is an abundant number, since it is smaller than the sum of its proper divisors (48193384844).

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

25454252100 is a wasteful number, since it uses less digits than its factorization.

25454252100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84847524 (or 84847517 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 25454252100 its reverse (125245452), we get a palindrome (25579497552).

The spelling of 25454252100 in words is "twenty-five billion, four hundred fifty-four million, two hundred fifty-two thousand, one hundred".