53345517923 has 2 divisors, whose sum is σ = 53345517924. Its totient is φ = 53345517922.

The previous prime is 53345517859. The next prime is 53345517949. The reversal of 53345517923 is 32971554335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53345517923 - 2⁶ = 53345517859 is a prime.

It is a super-2 number, since 2×53345517923² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53345517623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672758961 + 26672758962.

It is an arithmetic number, because the mean of its divisors is an integer number (26672758962).

Almost surely, 2^53345517923 is an apocalyptic number.

53345517923 is a deficient number, since it is larger than the sum of its proper divisors (1).

53345517923 is an equidigital number, since it uses as much as digits as its factorization.

53345517923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701000, while the sum is 47.

The spelling of 53345517923 in words is "fifty-three billion, three hundred forty-five million, five hundred seventeen thousand, nine hundred twenty-three".