53193820 has 12 divisors (see below), whose sum is σ = 111707064. Its totient is φ = 21277520.

The previous prime is 53193817. The next prime is 53193841. The reversal of 53193820 is 2839135.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329826 + ... + 1329865.

It is an arithmetic number, because the mean of its divisors is an integer number (9308922).

Almost surely, 2^53193820 is an apocalyptic number.

It is an amenable number.

53193820 is an abundant number, since it is smaller than the sum of its proper divisors (58513244).

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

53193820 is a wasteful number, since it uses less digits than its factorization.

53193820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659700 (or 2659698 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 53193820 is about 7293.4093536562. The cubic root of 53193820 is about 376.0859072607.

The spelling of 53193820 in words is "fifty-three million, one hundred ninety-three thousand, eight hundred twenty".