31425593 has 2 divisors, whose sum is σ = 31425594. Its totient is φ = 31425592.

The previous prime is 31425577. The next prime is 31425619. The reversal of 31425593 is 39552413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17197609 + 14227984 = 4147^2 + 3772^2 .

It is a cyclic number.

It is not a de Polignac number, because 31425593 - 2⁴ = 31425577 is a prime.

It is not a weakly prime, because it can be changed into another prime (31425193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712796 + 15712797.

It is an arithmetic number, because the mean of its divisors is an integer number (15712797).

Almost surely, 2^31425593 is an apocalyptic number.

It is an amenable number.

31425593 is a deficient number, since it is larger than the sum of its proper divisors (1).

31425593 is an equidigital number, since it uses as much as digits as its factorization.

31425593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 31425593 is about 5605.8534586627. The cubic root of 31425593 is about 315.5691164400.

The spelling of 31425593 in words is "thirty-one million, four hundred twenty-five thousand, five hundred ninety-three".