53139890443 has 2 divisors, whose sum is σ = 53139890444. Its totient is φ = 53139890442.

The previous prime is 53139890423. The next prime is 53139890459. The reversal of 53139890443 is 34409893135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53139890443 - 2²⁵ = 53106336011 is a prime.

It is not a weakly prime, because it can be changed into another prime (53139890413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26569945221 + 26569945222.

It is an arithmetic number, because the mean of its divisors is an integer number (26569945222).

Almost surely, 2^53139890443 is an apocalyptic number.

53139890443 is a deficient number, since it is larger than the sum of its proper divisors (1).

53139890443 is an equidigital number, since it uses as much as digits as its factorization.

53139890443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 53139890443 in words is "fifty-three billion, one hundred thirty-nine million, eight hundred ninety thousand, four hundred forty-three".