53734921 has 2 divisors, whose sum is σ = 53734922. Its totient is φ = 53734920.

The previous prime is 53734903. The next prime is 53734937. The reversal of 53734921 is 12943735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50623225 + 3111696 = 7115^2 + 1764^2 .

It is a cyclic number.

It is not a de Polignac number, because 53734921 - 2¹¹ = 53732873 is a prime.

It is not a weakly prime, because it can be changed into another prime (53734981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26867460 + 26867461.

It is an arithmetic number, because the mean of its divisors is an integer number (26867461).

Almost surely, 2^53734921 is an apocalyptic number.

It is an amenable number.

53734921 is a deficient number, since it is larger than the sum of its proper divisors (1).

53734921 is an equidigital number, since it uses as much as digits as its factorization.

53734921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 53734921 is about 7330.4106979077. The cubic root of 53734921 is about 377.3568212775.

The spelling of 53734921 in words is "fifty-three million, seven hundred thirty-four thousand, nine hundred twenty-one".