52694309 has 2 divisors, whose sum is σ = 52694310. Its totient is φ = 52694308.

The previous prime is 52694287. The next prime is 52694321. The reversal of 52694309 is 90349625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34869025 + 17825284 = 5905^2 + 4222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52694309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52694399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26347154 + 26347155.

It is an arithmetic number, because the mean of its divisors is an integer number (26347155).

Almost surely, 2^52694309 is an apocalyptic number.

It is an amenable number.

52694309 is a deficient number, since it is larger than the sum of its proper divisors (1).

52694309 is an equidigital number, since it uses as much as digits as its factorization.

52694309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 52694309 is about 7259.0845841607. The cubic root of 52694309 is about 374.9050046785.

The spelling of 52694309 in words is "fifty-two million, six hundred ninety-four thousand, three hundred nine".