32313557 has 2 divisors, whose sum is σ = 32313558. Its totient is φ = 32313556.

The previous prime is 32313539. The next prime is 32313559. The reversal of 32313557 is 75531323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27447121 + 4866436 = 5239^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 32313557 - 2⁶ = 32313493 is a prime.

Together with 32313559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32313559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16156778 + 16156779.

It is an arithmetic number, because the mean of its divisors is an integer number (16156779).

Almost surely, 2^32313557 is an apocalyptic number.

It is an amenable number.

32313557 is a deficient number, since it is larger than the sum of its proper divisors (1).

32313557 is an equidigital number, since it uses as much as digits as its factorization.

32313557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 29.

The square root of 32313557 is about 5684.5014733044. The cubic root of 32313557 is about 318.5138015899.

The spelling of 32313557 in words is "thirty-two million, three hundred thirteen thousand, five hundred fifty-seven".