53820730 has 16 divisors (see below), whose sum is σ = 101976480. Its totient is φ = 20395152.

The previous prime is 53820721. The next prime is 53820731. The reversal of 53820730 is 3702835.

It is not an unprimeable number, because it can be changed into a prime (53820731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141444 + ... + 141823.

It is an arithmetic number, because the mean of its divisors is an integer number (6373530).

Almost surely, 2^53820730 is an apocalyptic number.

53820730 is a deficient number, since it is larger than the sum of its proper divisors (48155750).

53820730 is a wasteful number, since it uses less digits than its factorization.

53820730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283293.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 53820730 is about 7336.2613094137. The cubic root of 53820730 is about 377.5575807960.

The spelling of 53820730 in words is "fifty-three million, eight hundred twenty thousand, seven hundred thirty".