25592006040 has 128 divisors (see below), whose sum is σ = 81360365760. Its totient is φ = 6417711104.

The previous prime is 25592006039. The next prime is 25592006047. The reversal of 25592006040 is 4060029552.

It is a junction number, because it is equal to n+sod(n) for n = 25592005992 and 25592006010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25592006047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2796352 + ... + 2805488.

Almost surely, 2^25592006040 is an apocalyptic number.

25592006040 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 25592006040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40680182880).

25592006040 is an abundant number, since it is smaller than the sum of its proper divisors (55768359720).

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

25592006040 is a wasteful number, since it uses less digits than its factorization.

25592006040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10541 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 25592006040 in words is "twenty-five billion, five hundred ninety-two million, six thousand, forty".