53820894 has 16 divisors (see below), whose sum is σ = 107985168. Its totient is φ = 17883072.

The previous prime is 53820859. The next prime is 53820937. The reversal of 53820894 is 49802835.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12247 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (6749073).

Almost surely, 2^53820894 is an apocalyptic number.

53820894 is an abundant number, since it is smaller than the sum of its proper divisors (54164274).

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

53820894 is a wasteful number, since it uses less digits than its factorization.

53820894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28619.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 53820894 is about 7336.2724867606. The cubic root of 53820894 is about 377.5579642876.

The spelling of 53820894 in words is "fifty-three million, eight hundred twenty thousand, eight hundred ninety-four".