53204820 has 24 divisors (see below), whose sum is σ = 148973664. Its totient is φ = 14187936.

The previous prime is 53204783. The next prime is 53204831. The reversal of 53204820 is 2840235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443314 + ... + 443433.

It is an arithmetic number, because the mean of its divisors is an integer number (6207236).

Almost surely, 2^53204820 is an apocalyptic number.

It is an amenable number.

53204820 is an abundant number, since it is smaller than the sum of its proper divisors (95768844).

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

53204820 is a wasteful number, since it uses less digits than its factorization.

53204820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886759 (or 886757 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 53204820 is about 7294.1634201600. The cubic root of 53204820 is about 376.1118291933. Note that the first 3 decimals are identical.

The spelling of 53204820 in words is "fifty-three million, two hundred four thousand, eight hundred twenty".