25940554080 has 384 divisors, whose sum is σ = 98668523520. Its totient is φ = 5596231680.

The previous prime is 25940554067. The next prime is 25940554091. The reversal of 25940554080 is 8045504952.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22151895 + ... + 22153065.

It is an arithmetic number, because the mean of its divisors is an integer number (256949280).

Almost surely, 2^25940554080 is an apocalyptic number.

25940554080 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 25940554080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49334261760).

25940554080 is an abundant number, since it is smaller than the sum of its proper divisors (72727969440).

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

25940554080 is a wasteful number, since it uses less digits than its factorization.

25940554080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 25940554080 in words is "twenty-five billion, nine hundred forty million, five hundred fifty-four thousand, eighty".