25662440382 has 8 divisors (see below), whose sum is σ = 51324880776. Its totient is φ = 8554146792.

The previous prime is 25662440381. The next prime is 25662440393. The reversal of 25662440382 is 28304426652.

It is a sphenic number, since it is the product of 3 distinct primes.

25662440382 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25662440381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138536693 + ... + 2138536704.

It is an arithmetic number, because the mean of its divisors is an integer number (6415610097).

Almost surely, 2^25662440382 is an apocalyptic number.

25662440382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25662440382 is a wasteful number, since it uses less digits than its factorization.

25662440382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277073402.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 25662440382 in words is "twenty-five billion, six hundred sixty-two million, four hundred forty thousand, three hundred eighty-two".