53820930 has 48 divisors (see below), whose sum is σ = 131229504. Its totient is φ = 14126400.

The previous prime is 53820859. The next prime is 53820937. The reversal of 53820930 is 3902835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (53820937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356355 + ... + 356505.

It is an arithmetic number, because the mean of its divisors is an integer number (2733948).

Almost surely, 2^53820930 is an apocalyptic number.

53820930 is an abundant number, since it is smaller than the sum of its proper divisors (77408574).

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

53820930 is a wasteful number, since it uses less digits than its factorization.

53820930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 53820930 is about 7336.2749403222. The cubic root of 53820930 is about 377.5580484685.

The spelling of 53820930 in words is "fifty-three million, eight hundred twenty thousand, nine hundred thirty".