53456999 has 2 divisors, whose sum is σ = 53457000. Its totient is φ = 53456998.

The previous prime is 53456987. The next prime is 53457007. The reversal of 53456999 is 99965435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53456999 - 2⁴ = 53456983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53456969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26728499 + 26728500.

It is an arithmetic number, because the mean of its divisors is an integer number (26728500).

Almost surely, 2^53456999 is an apocalyptic number.

53456999 is a deficient number, since it is larger than the sum of its proper divisors (1).

53456999 is an equidigital number, since it uses as much as digits as its factorization.

53456999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1312200, while the sum is 50.

The square root of 53456999 is about 7311.4293404231. The cubic root of 53456999 is about 376.7051215949.

The spelling of 53456999 in words is "fifty-three million, four hundred fifty-six thousand, nine hundred ninety-nine".