25884532831 has 4 divisors (see below), whose sum is σ = 25890357952. Its totient is φ = 25878707712.

The previous prime is 25884532819. The next prime is 25884532841. The reversal of 25884532831 is 13823548852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25884532831 - 2²⁹ = 25347661919 is a prime.

It is a super-2 number, since 2×25884532831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25884532811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2905890 + ... + 2914783.

It is an arithmetic number, because the mean of its divisors is an integer number (6472589488).

Almost surely, 2^25884532831 is an apocalyptic number.

25884532831 is a deficient number, since it is larger than the sum of its proper divisors (5825121).

25884532831 is an equidigital number, since it uses as much as digits as its factorization.

25884532831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825120.

The product of its digits is 1843200, while the sum is 49.

The spelling of 25884532831 in words is "twenty-five billion, eight hundred eighty-four million, five hundred thirty-two thousand, eight hundred thirty-one".