31032425 has 12 divisors (see below), whose sum is σ = 38681676. Its totient is φ = 24696000.

The previous prime is 31032413. The next prime is 31032427. The reversal of 31032425 is 52423013.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1731856 + 29300569 = 1316^2 + 5413^2 .

It is not a de Polignac number, because 31032425 - 2¹⁶ = 30966889 is a prime.

It is a super-2 number, since 2×31032425² = 1926022802761250, 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 = 31032397 and 31032406.

It is not an unprimeable number, because it can be changed into a prime (31032427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1775 + ... + 8075.

It is an arithmetic number, because the mean of its divisors is an integer number (3223473).

Almost surely, 2^31032425 is an apocalyptic number.

It is an amenable number.

31032425 is a deficient number, since it is larger than the sum of its proper divisors (7649251).

31032425 is a wasteful number, since it uses less digits than its factorization.

31032425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508 (or 6503 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 31032425 is about 5570.6754527615. The cubic root of 31032425 is about 314.2475531686.

Adding to 31032425 its reverse (52423013), we get a palindrome (83455438).

The spelling of 31032425 in words is "thirty-one million, thirty-two thousand, four hundred twenty-five".