25531829965 has 8 divisors (see below), whose sum is σ = 30646993248. Its totient is φ = 20419599120.

The previous prime is 25531829951. The next prime is 25531829977. The reversal of 25531829965 is 56992813552.

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

It is not a de Polignac number, because 25531829965 - 2¹¹ = 25531827917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713907 + ... + 748816.

It is an arithmetic number, because the mean of its divisors is an integer number (3830874156).

Almost surely, 2^25531829965 is an apocalyptic number.

It is an amenable number.

25531829965 is a deficient number, since it is larger than the sum of its proper divisors (5115163283).

25531829965 is a wasteful number, since it uses less digits than its factorization.

25531829965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466219.

The product of its digits is 5832000, while the sum is 55.

The spelling of 25531829965 in words is "twenty-five billion, five hundred thirty-one million, eight hundred twenty-nine thousand, nine hundred sixty-five".