53309747 has 2 divisors, whose sum is σ = 53309748. Its totient is φ = 53309746.

The previous prime is 53309681. The next prime is 53309759. The reversal of 53309747 is 74790335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53309747 - 2¹⁴ = 53293363 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 53309747.

It is not a weakly prime, because it can be changed into another prime (53309447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26654873 + 26654874.

It is an arithmetic number, because the mean of its divisors is an integer number (26654874).

Almost surely, 2^53309747 is an apocalyptic number.

53309747 is a deficient number, since it is larger than the sum of its proper divisors (1).

53309747 is an equidigital number, since it uses as much as digits as its factorization.

53309747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 53309747 is about 7301.3524089719. The cubic root of 53309747 is about 376.3589143969.

The spelling of 53309747 in words is "fifty-three million, three hundred nine thousand, seven hundred forty-seven".