53133530 has 8 divisors (see below), whose sum is σ = 95640372. Its totient is φ = 21253408.

The previous prime is 53133527. The next prime is 53133559. The reversal of 53133530 is 3533135.

It can be written as a sum of positive squares in 2 ways, for example, as 43467649 + 9665881 = 6593^2 + 3109^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 53133496 and 53133505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656667 + ... + 2656686.

Almost surely, 2^53133530 is an apocalyptic number.

53133530 is a deficient number, since it is larger than the sum of its proper divisors (42506842).

53133530 is a wasteful number, since it uses less digits than its factorization.

53133530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313360.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 53133530 is about 7289.2749982423. The cubic root of 53133530 is about 375.9437679979.

Adding to 53133530 its reverse (3533135), we get a palindrome (56666665).

The spelling of 53133530 in words is "fifty-three million, one hundred thirty-three thousand, five hundred thirty".