25454253100 has 36 divisors (see below), whose sum is σ = 55341456184. Its totient is φ = 10162212480.

The previous prime is 25454253073. The next prime is 25454253161. The reversal of 25454253100 is 135245452.

It is a super-2 number, since 2×25454253100² (a number of 22 digits) contains 22 as substring.

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, 191049 + ... + 295648.

Almost surely, 2^25454253100 is an apocalyptic number.

25454253100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25454253100 is an abundant number, since it is smaller than the sum of its proper divisors (29887203084).

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

25454253100 is a wasteful number, since it uses less digits than its factorization.

25454253100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487234 (or 487227 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 25454253100 its reverse (135245452), we get a palindrome (25589498552).

The spelling of 25454253100 in words is "twenty-five billion, four hundred fifty-four million, two hundred fifty-three thousand, one hundred".