25506692983 has 8 divisors (see below), whose sum is σ = 26264198016. Its totient is φ = 24755635200.

The previous prime is 25506692963. The next prime is 25506693077. The reversal of 25506692983 is 38929660552.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25506692983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25506692963) 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, 1603783 + ... + 1619608.

It is an arithmetic number, because the mean of its divisors is an integer number (3283024752).

Almost surely, 2^25506692983 is an apocalyptic number.

25506692983 is a deficient number, since it is larger than the sum of its proper divisors (757505033).

25506692983 is a wasteful number, since it uses less digits than its factorization.

25506692983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223625.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 25506692983 in words is "twenty-five billion, five hundred six million, six hundred ninety-two thousand, nine hundred eighty-three".