25400460000 has 120 divisors (see below), whose sum is σ = 83318785704. Its totient is φ = 6773440000.

The previous prime is 25400459939. The next prime is 25400460047. The reversal of 25400460000 is 6400452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 151671 + ... + 271670.

Almost surely, 2^25400460000 is an apocalyptic number.

25400460000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25400460000 is an abundant number, since it is smaller than the sum of its proper divisors (57918325704).

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

25400460000 is an equidigital number, since it uses as much as digits as its factorization.

25400460000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423374 (or 423351 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 25400460000 its reverse (6400452), we get a palindrome (25406860452).

The spelling of 25400460000 in words is "twenty-five billion, four hundred million, four hundred sixty thousand".