53133505 has 8 divisors (see below), whose sum is σ = 63945000. Its totient is φ = 42383616.

The previous prime is 53133503. The next prime is 53133523. The reversal of 53133505 is 50533135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2666689 + 50466816 = 1633^2 + 7104^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53133505 - 2¹ = 53133503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53133505.

It is not an unprimeable number, because it can be changed into a prime (53133503) 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, 13480 + ... + 16969.

It is an arithmetic number, because the mean of its divisors is an integer number (7993125).

Almost surely, 2^53133505 is an apocalyptic number.

It is an amenable number.

53133505 is a deficient number, since it is larger than the sum of its proper divisors (10811495).

53133505 is a wasteful number, since it uses less digits than its factorization.

53133505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30803.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 53133505 is about 7289.2732833939. The cubic root of 53133505 is about 375.9437090358.

The spelling of 53133505 in words is "fifty-three million, one hundred thirty-three thousand, five hundred five".