53408009923 has 2 divisors, whose sum is σ = 53408009924. Its totient is φ = 53408009922.

The previous prime is 53408009909. The next prime is 53408009927. The reversal of 53408009923 is 32990080435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53408009923 - 2³³ = 44818075331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53408009923.

It is not a weakly prime, because it can be changed into another prime (53408009927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26704004961 + 26704004962.

It is an arithmetic number, because the mean of its divisors is an integer number (26704004962).

Almost surely, 2^53408009923 is an apocalyptic number.

53408009923 is a deficient number, since it is larger than the sum of its proper divisors (1).

53408009923 is an equidigital number, since it uses as much as digits as its factorization.

53408009923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 53408009923 in words is "fifty-three billion, four hundred eight million, nine thousand, nine hundred twenty-three".