31675225 has 6 divisors (see below), whose sum is σ = 39277310. Its totient is φ = 25340160.

The previous prime is 31675213. The next prime is 31675229. The reversal of 31675225 is 52257613.

It can be written as a sum of positive squares in 3 ways, for example, as 841 + 31674384 = 29^2 + 5628^2 .

It is not a de Polignac number, because 31675225 - 2¹⁷ = 31544153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31675229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633480 + ... + 633529.

Almost surely, 2^31675225 is an apocalyptic number.

It is an amenable number.

31675225 is a deficient number, since it is larger than the sum of its proper divisors (7602085).

31675225 is a wasteful number, since it uses less digits than its factorization.

31675225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267019 (or 1267014 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 31675225 is about 5628.0747152112. The cubic root of 31675225 is about 316.4024974457.

The spelling of 31675225 in words is "thirty-one million, six hundred seventy-five thousand, two hundred twenty-five".