31441333225 has 12 divisors (see below), whose sum is σ = 38989452060. Its totient is φ = 25151648000.

The previous prime is 31441333193. The next prime is 31441333237. The reversal of 31441333225 is 52233314413.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9447256809 + 21994076416 = 97197^2 + 148304^2 .

It is not a de Polignac number, because 31441333225 - 2⁵ = 31441333193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 860325 + ... + 896125.

It is an arithmetic number, because the mean of its divisors is an integer number (3249121005).

Almost surely, 2^31441333225 is an apocalyptic number.

It is an amenable number.

31441333225 is a deficient number, since it is larger than the sum of its proper divisors (7548118835).

31441333225 is a wasteful number, since it uses less digits than its factorization.

31441333225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70940 (or 70935 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

Adding to 31441333225 its reverse (52233314413), we get a palindrome (83674647638).

The spelling of 31441333225 in words is "thirty-one billion, four hundred forty-one million, three hundred thirty-three thousand, two hundred twenty-five".