53475839 has 2 divisors, whose sum is σ = 53475840. Its totient is φ = 53475838.

The previous prime is 53475817. The next prime is 53475853. The reversal of 53475839 is 93857435.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53475839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53475839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53475869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26737919 + 26737920.

It is an arithmetic number, because the mean of its divisors is an integer number (26737920).

Almost surely, 2^53475839 is an apocalyptic number.

53475839 is a deficient number, since it is larger than the sum of its proper divisors (1).

53475839 is an equidigital number, since it uses as much as digits as its factorization.

53475839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 44.

The square root of 53475839 is about 7312.7176206934. The cubic root of 53475839 is about 376.7493708110.

The spelling of 53475839 in words is "fifty-three million, four hundred seventy-five thousand, eight hundred thirty-nine".