25452000000 has 756 divisors, whose sum is σ = 105871457328. Its totient is φ = 5760000000.

The previous prime is 25451999987. The next prime is 25452000037. The reversal of 25452000000 is 25452.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 251999950 + ... + 252000050.

Almost surely, 2^25452000000 is an apocalyptic number.

25452000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25452000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52935728664).

25452000000 is an abundant number, since it is smaller than the sum of its proper divisors (80419457328).

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

25452000000 is an frugal number, since it uses more digits than its factorization.

25452000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

Adding to 25452000000 its reverse (25452), we get a palindrome (25452025452).

Multiplying 25452000000 by its reverse (25452), we get a square (647804304000000 = 25452000²).

25452000000 divided by its reverse (25452) gives a 6-th power (1000000 = 10⁶).

The spelling of 25452000000 in words is "twenty-five billion, four hundred fifty-two million", and thus it is an aban number.