31442025 has 24 divisors (see below), whose sum is σ = 52409344. Its totient is φ = 16632000.

The previous prime is 31441999. The next prime is 31442069. The reversal of 31442025 is 52024413.

It is not a de Polignac number, because 31442025 - 2⁸ = 31441769 is a prime.

It is a super-2 number, since 2×31442025² = 1977201872201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31441992 and 31442010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7875 + ... + 11175.

Almost surely, 2^31442025 is an apocalyptic number.

It is an amenable number.

31442025 is a deficient number, since it is larger than the sum of its proper divisors (20967319).

31442025 is a wasteful number, since it uses less digits than its factorization.

31442025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 31442025 is about 5607.3188780379. The cubic root of 31442025 is about 315.6241090718.

Adding to 31442025 its reverse (52024413), we get a palindrome (83466438).

The spelling of 31442025 in words is "thirty-one million, four hundred forty-two thousand, twenty-five".