25044644052 has 108 divisors (see below), whose sum is σ = 67906130656. Its totient is φ = 7780527360.

The previous prime is 25044644047. The next prime is 25044644063.

25044644052 is a `hidden beast` number, since 2 + 5 + 0 + 4 + 4 + 644 + 0 + 5 + 2 = 666.

25044644052 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25044643998 and 25044644016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1059927 + ... + 1083297.

Almost surely, 2^25044644052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25044644052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33953065328).

25044644052 is an abundant number, since it is smaller than the sum of its proper divisors (42861486604).

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

25044644052 is a wasteful number, since it uses less digits than its factorization.

25044644052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23518 (or 23496 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 25044644052 in words is "twenty-five billion, forty-four million, six hundred forty-four thousand, fifty-two".