53394973 has 2 divisors, whose sum is σ = 53394974. Its totient is φ = 53394972.

The previous prime is 53394931. The next prime is 53395007. The reversal of 53394973 is 37949335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49871844 + 3523129 = 7062^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 53394973 - 2⁹ = 53394461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53391973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26697486 + 26697487.

It is an arithmetic number, because the mean of its divisors is an integer number (26697487).

Almost surely, 2^53394973 is an apocalyptic number.

It is an amenable number.

53394973 is a deficient number, since it is larger than the sum of its proper divisors (1).

53394973 is an equidigital number, since it uses as much as digits as its factorization.

53394973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 43.

The square root of 53394973 is about 7307.1863942286. The cubic root of 53394973 is about 376.5593685902.

The spelling of 53394973 in words is "fifty-three million, three hundred ninety-four thousand, nine hundred seventy-three".