53216903 has 2 divisors, whose sum is σ = 53216904. Its totient is φ = 53216902.

The previous prime is 53216899. The next prime is 53216923. The reversal of 53216903 is 30961235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53216903 - 2² = 53216899 is a prime.

It is a super-2 number, since 2×53216903² = 5664077529822818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53216923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26608451 + 26608452.

It is an arithmetic number, because the mean of its divisors is an integer number (26608452).

Almost surely, 2^53216903 is an apocalyptic number.

53216903 is a deficient number, since it is larger than the sum of its proper divisors (1).

53216903 is an equidigital number, since it uses as much as digits as its factorization.

53216903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 53216903 is about 7294.9916381035. The cubic root of 53216903 is about 376.1402991405.

The spelling of 53216903 in words is "fifty-three million, two hundred sixteen thousand, nine hundred three".