53263730 has 24 divisors (see below), whose sum is σ = 103820292. Its totient is φ = 19665984.

The previous prime is 53263729. The next prime is 53263733. The reversal of 53263730 is 3736235.

It can be written as a sum of positive squares in 6 ways, for example, as 657721 + 52606009 = 811^2 + 7253^2 .

It is a super-3 number, since 3×53263730³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53263693 and 53263702.

It is not an unprimeable number, because it can be changed into a prime (53263733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14069 + ... + 17448.

Almost surely, 2^53263730 is an apocalyptic number.

53263730 is a deficient number, since it is larger than the sum of its proper divisors (50556562).

53263730 is a wasteful number, since it uses less digits than its factorization.

53263730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31550 (or 31537 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 53263730 is about 7298.2004631279. The cubic root of 53263730 is about 376.2505921559.

Adding to 53263730 its reverse (3736235), we get a palindrome (56999965).

The spelling of 53263730 in words is "fifty-three million, two hundred sixty-three thousand, seven hundred thirty".