25504375050 has 432 divisors, whose sum is σ = 88239513024. Its totient is φ = 5221440000.

The previous prime is 25504375031. The next prime is 25504375063. The reversal of 25504375050 is 5057340552.

25504375050 is a `hidden beast` number, since 2 + 550 + 4 + 3 + 7 + 50 + 50 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25504374996 and 25504375014.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 17220310 + ... + 17221790.

It is an arithmetic number, because the mean of its divisors is an integer number (204258132).

Almost surely, 2^25504375050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25504375050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44119756512).

25504375050 is an abundant number, since it is smaller than the sum of its proper divisors (62735137974).

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

25504375050 is a wasteful number, since it uses less digits than its factorization.

25504375050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The spelling of 25504375050 in words is "twenty-five billion, five hundred four million, three hundred seventy-five thousand, fifty".