53819730 has 24 divisors (see below), whose sum is σ = 139931532. Its totient is φ = 14351904.

The previous prime is 53819729. The next prime is 53819783. The reversal of 53819730 is 3791835.

53819730 is a `hidden beast` number, since 538 + 1 + 97 + 30 = 666.

53819730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47900241 + 5919489 = 6921^2 + 2433^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298909 + ... + 299088.

Almost surely, 2^53819730 is an apocalyptic number.

53819730 is an abundant number, since it is smaller than the sum of its proper divisors (86111802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53819730 is a wasteful number, since it uses less digits than its factorization.

53819730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598010 (or 598007 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53819730 is about 7336.1931544910. The cubic root of 53819730 is about 377.5552424163. Note that the first 3 decimals are identical.

The spelling of 53819730 in words is "fifty-three million, eight hundred nineteen thousand, seven hundred thirty".