53392709 has 2 divisors, whose sum is σ = 53392710. Its totient is φ = 53392708.

The previous prime is 53392687. The next prime is 53392721. The reversal of 53392709 is 90729335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40360609 + 13032100 = 6353^2 + 3610^2 .

It is a cyclic number.

It is not a de Polignac number, because 53392709 - 2²⁴ = 36615493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53392789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26696354 + 26696355.

It is an arithmetic number, because the mean of its divisors is an integer number (26696355).

Almost surely, 2^53392709 is an apocalyptic number.

It is an amenable number.

53392709 is a deficient number, since it is larger than the sum of its proper divisors (1).

53392709 is an equidigital number, since it uses as much as digits as its factorization.

53392709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 53392709 is about 7307.0314765984. The cubic root of 53392709 is about 376.5540463510.

The spelling of 53392709 in words is "fifty-three million, three hundred ninety-two thousand, seven hundred nine".