53430739 has 2 divisors, whose sum is σ = 53430740. Its totient is φ = 53430738.

The previous prime is 53430737. The next prime is 53430743. The reversal of 53430739 is 93703435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53430739 - 2¹ = 53430737 is a prime.

It is a super-2 number, since 2×53430739² = 5709687740172242, which contains 22 as substring.

Together with 53430737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53430737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26715369 + 26715370.

It is an arithmetic number, because the mean of its divisors is an integer number (26715370).

Almost surely, 2^53430739 is an apocalyptic number.

53430739 is a deficient number, since it is larger than the sum of its proper divisors (1).

53430739 is an equidigital number, since it uses as much as digits as its factorization.

53430739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 53430739 is about 7309.6333013360. The cubic root of 53430739 is about 376.6434277916.

The spelling of 53430739 in words is "fifty-three million, four hundred thirty thousand, seven hundred thirty-nine".