25585796052 has 24 divisors (see below), whose sum is σ = 66333545600. Its totient is φ = 8528598648.

The previous prime is 25585796011. The next prime is 25585796069. The reversal of 25585796052 is 25069758552.

It is a happy number.

25585796052 is a `hidden beast` number, since 2 + 5 + 5 + 8 + 579 + 60 + 5 + 2 = 666.

It is a super-2 number, since 2×25585796052² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 25585796052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118452652 + ... + 118452867.

Almost surely, 2^25585796052 is an apocalyptic number.

It is an amenable number.

25585796052 is an abundant number, since it is smaller than the sum of its proper divisors (40747749548).

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

25585796052 is a wasteful number, since it uses less digits than its factorization.

25585796052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236905532 (or 236905524 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 54.

The spelling of 25585796052 in words is "twenty-five billion, five hundred eighty-five million, seven hundred ninety-six thousand, fifty-two".