31774223225 has 6 divisors (see below), whose sum is σ = 39400036830. Its totient is φ = 25419378560.

The previous prime is 31774223213. The next prime is 31774223227. The reversal of 31774223225 is 52232247713.

It can be written as a sum of positive squares in 3 ways, for example, as 904084624 + 30870138601 = 30068^2 + 175699^2 .

It is not a de Polignac number, because 31774223225 - 2²² = 31770028921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31774223227) 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, 635484440 + ... + 635484489.

It is an arithmetic number, because the mean of its divisors is an integer number (6566672805).

Almost surely, 2^31774223225 is an apocalyptic number.

It is an amenable number.

31774223225 is a deficient number, since it is larger than the sum of its proper divisors (7625813605).

31774223225 is a wasteful number, since it uses less digits than its factorization.

31774223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270968939 (or 1270968934 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The spelling of 31774223225 in words is "thirty-one billion, seven hundred seventy-four million, two hundred twenty-three thousand, two hundred twenty-five".