25653782883631 has 8 divisors (see below), whose sum is σ = 29326893471360. Its totient is φ = 21982743411288.

The previous prime is 25653782883403. The next prime is 25653782883809. The reversal of 25653782883631 is 13638828735652.

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

It is a cyclic number.

It is not a de Polignac number, because 25653782883631 - 2¹³ = 25653782875439 is a prime.

It is a super-5 number, since 5×25653782883631⁵ (a number of 68 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25653782803631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517752301 + ... + 517801846.

It is an arithmetic number, because the mean of its divisors is an integer number (3665861683920).

Almost surely, 2^{25653782883631} is an apocalyptic number.

25653782883631 is a deficient number, since it is larger than the sum of its proper divisors (3673110587729).

25653782883631 is a wasteful number, since it uses less digits than its factorization.

25653782883631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035557693.

The product of its digits is 348364800, while the sum is 67.

The spelling of 25653782883631 in words is "twenty-five trillion, six hundred fifty-three billion, seven hundred eighty-two million, eight hundred eighty-three thousand, six hundred thirty-one".