53430133 has 4 divisors (see below), whose sum is σ = 56573100. Its totient is φ = 50287168.

The previous prime is 53430121. The next prime is 53430161. The reversal of 53430133 is 33103435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23213124 + 30217009 = 4818^2 + 5497^2 .

It is a cyclic number.

It is not a de Polignac number, because 53430133 - 2⁵ = 53430101 is a prime.

It is a super-2 number, since 2×53430133² = 5709558224795378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53430103) 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, 1571458 + ... + 1571491.

It is an arithmetic number, because the mean of its divisors is an integer number (14143275).

Almost surely, 2^53430133 is an apocalyptic number.

It is an amenable number.

53430133 is a deficient number, since it is larger than the sum of its proper divisors (3142967).

53430133 is a wasteful number, since it uses less digits than its factorization.

53430133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142966.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 53430133 is about 7309.5918490706. The cubic root of 53430133 is about 376.6420038498.

Adding to 53430133 its reverse (33103435), we get a palindrome (86533568).

The spelling of 53430133 in words is "fifty-three million, four hundred thirty thousand, one hundred thirty-three".