53820893 has 16 divisors (see below), whose sum is σ = 62584704. Its totient is φ = 45334080.

The previous prime is 53820859. The next prime is 53820937. The reversal of 53820893 is 39802835.

It is a cyclic number.

It is not a de Polignac number, because 53820893 - 2²² = 49626589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53810893) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 135371 + ... + 135767.

It is an arithmetic number, because the mean of its divisors is an integer number (3911544).

Almost surely, 2^53820893 is an apocalyptic number.

It is an amenable number.

53820893 is a deficient number, since it is larger than the sum of its proper divisors (8763811).

53820893 is a wasteful number, since it uses less digits than its factorization.

53820893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 53820893 is about 7336.2724186061. The cubic root of 53820893 is about 377.5579619492.

The spelling of 53820893 in words is "fifty-three million, eight hundred twenty thousand, eight hundred ninety-three".