53712730 has 8 divisors (see below), whose sum is σ = 96682932. Its totient is φ = 21485088.

The previous prime is 53712721. The next prime is 53712733. The reversal of 53712730 is 3721735.

It can be written as a sum of positive squares in 2 ways, for example, as 48316401 + 5396329 = 6951^2 + 2323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53712733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2685627 + ... + 2685646.

Almost surely, 2^53712730 is an apocalyptic number.

53712730 is a deficient number, since it is larger than the sum of its proper divisors (42970202).

53712730 is a wasteful number, since it uses less digits than its factorization.

53712730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371280.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 53712730 is about 7328.8969156347. The cubic root of 53712730 is about 377.3048682330.

The spelling of 53712730 in words is "fifty-three million, seven hundred twelve thousand, seven hundred thirty".