25413493596 has 72 divisors (see below), whose sum is σ = 65023719936. Its totient is φ = 7715639040.

The previous prime is 25413493513. The next prime is 25413493631. The reversal of 25413493596 is 69539431452.

It is a super-2 number, since 2×25413493596² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 10686 + ... + 225701.

Almost surely, 2^25413493596 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 25413493596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32511859968).

25413493596 is an abundant number, since it is smaller than the sum of its proper divisors (39610226340).

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

25413493596 is a wasteful number, since it uses less digits than its factorization.

25413493596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236459 (or 236440 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The spelling of 25413493596 in words is "twenty-five billion, four hundred thirteen million, four hundred ninety-three thousand, five hundred ninety-six".