25052802840 has 192 divisors, whose sum is σ = 88887183840. Its totient is φ = 6082283520.

The previous prime is 25052802809. The next prime is 25052802869. The reversal of 25052802840 is 4820825052.

25052802840 is a `hidden beast` number, since 2 + 50 + 528 + 0 + 2 + 84 + 0 = 666.

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 = 25052802795 and 25052802804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304975 + ... + 378305.

Almost surely, 2^25052802840 is an apocalyptic number.

25052802840 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 25052802840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44443591920).

25052802840 is an abundant number, since it is smaller than the sum of its proper divisors (63834381000).

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

25052802840 is a wasteful number, since it uses less digits than its factorization.

25052802840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73434 (or 73427 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 25052802840 in words is "twenty-five billion, fifty-two million, eight hundred two thousand, eight hundred forty".