25835349904 has 160 divisors (see below), whose sum is σ = 64109674496. Its totient is φ = 9810823680.

The previous prime is 25835349899. The next prime is 25835349929. The reversal of 25835349904 is 40994353852.

It is a super-2 number, since 2×25835349904² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5730019 + ... + 5734525.

Almost surely, 2^25835349904 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 25835349904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32054837248).

25835349904 is an abundant number, since it is smaller than the sum of its proper divisors (38274324592).

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

25835349904 is a wasteful number, since it uses less digits than its factorization.

25835349904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4687 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 25835349904 in words is "twenty-five billion, eight hundred thirty-five million, three hundred forty-nine thousand, nine hundred four".