53833921 has 2 divisors, whose sum is σ = 53833922. Its totient is φ = 53833920.

The previous prime is 53833873. The next prime is 53833937. The reversal of 53833921 is 12933835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43362225 + 10471696 = 6585^2 + 3236^2 .

It is a cyclic number.

It is not a de Polignac number, because 53833921 - 2¹⁷ = 53702849 is a prime.

It is not a weakly prime, because it can be changed into another prime (53833981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26916960 + 26916961.

It is an arithmetic number, because the mean of its divisors is an integer number (26916961).

Almost surely, 2^53833921 is an apocalyptic number.

It is an amenable number.

53833921 is a deficient number, since it is larger than the sum of its proper divisors (1).

53833921 is an equidigital number, since it uses as much as digits as its factorization.

53833921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 53833921 is about 7337.1602817439. The cubic root of 53833921 is about 377.5884236530.

The spelling of 53833921 in words is "fifty-three million, eight hundred thirty-three thousand, nine hundred twenty-one".