39452513 has 2 divisors, whose sum is σ = 39452514. Its totient is φ = 39452512.

The previous prime is 39452507. The next prime is 39452587. The reversal of 39452513 is 31525493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28376929 + 11075584 = 5327^2 + 3328^2 .

It is a cyclic number.

It is not a de Polignac number, because 39452513 - 2¹² = 39448417 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39452513.

It is not a weakly prime, because it can be changed into another prime (39452813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19726256 + 19726257.

It is an arithmetic number, because the mean of its divisors is an integer number (19726257).

Almost surely, 2^39452513 is an apocalyptic number.

It is an amenable number.

39452513 is a deficient number, since it is larger than the sum of its proper divisors (1).

39452513 is an equidigital number, since it uses as much as digits as its factorization.

39452513 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 39452513 is about 6281.1235459908. The cubic root of 39452513 is about 340.4276999308.

The spelling of 39452513 in words is "thirty-nine million, four hundred fifty-two thousand, five hundred thirteen".