25045504000000 has 448 divisors, whose sum is σ = 68319363000960. Its totient is φ = 9105408000000.

The previous prime is 25045503999947. The next prime is 25045504000021. The reversal of 25045504000000 is 40554052.

It is a super-2 number, since 2×25045504000000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5631997777 + ... + 5632002223.

Almost surely, 2^{25045504000000} is an apocalyptic number.

25045504000000 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 25045504000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34159681500480).

25045504000000 is an abundant number, since it is smaller than the sum of its proper divisors (43273859000960).

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

25045504000000 is an frugal number, since it uses more digits than its factorization.

25045504000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

Adding to 25045504000000 its reverse (40554052), we get a palindrome (25045544554052).

The spelling of 25045504000000 in words is "twenty-five trillion, forty-five billion, five hundred four million", and thus it is an aban number.