52000730 has 16 divisors (see below), whose sum is σ = 94568040. Its totient is φ = 20585472.

The previous prime is 52000727. The next prime is 52000787. The reversal of 52000730 is 3700025.

52000730 = 54² + 55² + ... + 538².

It can be written as a sum of positive squares in 4 ways, for example, as 23687689 + 28313041 = 4867^2 + 5321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52000699 and 52000708.

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, 25835 + ... + 27774.

Almost surely, 2^52000730 is an apocalyptic number.

52000730 is a deficient number, since it is larger than the sum of its proper divisors (42567310).

52000730 is a wasteful number, since it uses less digits than its factorization.

52000730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53713.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 52000730 is about 7211.1531671432. The cubic root of 52000730 is about 373.2528622974.

Adding to 52000730 its reverse (3700025), we get a palindrome (55700755).

The spelling of 52000730 in words is "fifty-two million, seven hundred thirty", and thus it is an aban number.