25422831 has 12 divisors (see below), whose sum is σ = 41967952. Its totient is φ = 14527296.

The previous prime is 25422823. The next prime is 25422851. The reversal of 25422831 is 13822452.

It is not a de Polignac number, because 25422831 - 2³ = 25422823 is a prime.

It is a super-2 number, since 2×25422831² = 1292640672109122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25422795 and 25422804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25422851) 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 11 ways as a sum of consecutive naturals, for example, 201706 + ... + 201831.

Almost surely, 2^25422831 is an apocalyptic number.

25422831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25422831 is a deficient number, since it is larger than the sum of its proper divisors (16545121).

25422831 is a wasteful number, since it uses less digits than its factorization.

25422831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403550 (or 403547 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 25422831 is about 5042.1058100758. The cubic root of 25422831 is about 294.0410535480.

The spelling of 25422831 in words is "twenty-five million, four hundred twenty-two thousand, eight hundred thirty-one".