25940404952 has 96 divisors (see below), whose sum is σ = 61206216960. Its totient is φ = 10088971200.

The previous prime is 25940404927. The next prime is 25940404961.

25940404952 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25940404952² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4272623 + ... + 4278689.

It is an arithmetic number, because the mean of its divisors is an integer number (637564760).

Almost surely, 2^25940404952 is an apocalyptic number.

25940404952 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 25940404952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30603108480).

25940404952 is an abundant number, since it is smaller than the sum of its proper divisors (35265812008).

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

25940404952 is a wasteful number, since it uses less digits than its factorization.

25940404952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733 (or 6718 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 25940404952 in words is "twenty-five billion, nine hundred forty million, four hundred four thousand, nine hundred fifty-two".