31417325 has 6 divisors (see below), whose sum is σ = 38957514. Its totient is φ = 25133840.

The previous prime is 31417313. The next prime is 31417327. The reversal of 31417325 is 52371413.

31417325 = 1109² + 1110² + ... + 1133².

It can be written as a sum of positive squares in 3 ways, for example, as 23716 + 31393609 = 154^2 + 5603^2 .

It is not a de Polignac number, because 31417325 - 2⁸ = 31417069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31417294 and 31417303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31417327) 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, 628322 + ... + 628371.

It is an arithmetic number, because the mean of its divisors is an integer number (6492919).

Almost surely, 2^31417325 is an apocalyptic number.

It is an amenable number.

31417325 is a deficient number, since it is larger than the sum of its proper divisors (7540189).

31417325 is a wasteful number, since it uses less digits than its factorization.

31417325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256703 (or 1256698 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 31417325 is about 5605.1159666861. The cubic root of 31417325 is about 315.5414388472.

Adding to 31417325 its reverse (52371413), we get a palindrome (83788738).

The spelling of 31417325 in words is "thirty-one million, four hundred seventeen thousand, three hundred twenty-five".