25025937552 has 800 divisors, whose sum is σ = 96966650880. Its totient is φ = 6035420160.

The previous prime is 25025937539. The next prime is 25025937577. The reversal of 25025937552 is 25573952052.

25025937552 is a `hidden beast` number, since 2 + 5 + 0 + 2 + 5 + 93 + 7 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25025937498 and 25025937507.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 127035118 + ... + 127035314.

Almost surely, 2^25025937552 is an apocalyptic number.

25025937552 is a gapful number since it is divisible by the number (22) 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 25025937552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48483325440).

25025937552 is an abundant number, since it is smaller than the sum of its proper divisors (71940713328).

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

25025937552 is a wasteful number, since it uses less digits than its factorization.

25025937552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 25025937552 in words is "twenty-five billion, twenty-five million, nine hundred thirty-seven thousand, five hundred fifty-two".