53433243 has 16 divisors (see below), whose sum is σ = 81715200. Its totient is φ = 34472520.

The previous prime is 53433241. The next prime is 53433269. The reversal of 53433243 is 34233435.

It is a happy number.

It is not a de Polignac number, because 53433243 - 2¹ = 53433241 is a prime.

It is a super-2 number, since 2×53433243² = 5710222914994098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53433241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31083 + ... + 32756.

It is an arithmetic number, because the mean of its divisors is an integer number (5107200).

Almost surely, 2^53433243 is an apocalyptic number.

53433243 is a deficient number, since it is larger than the sum of its proper divisors (28281957).

53433243 is a wasteful number, since it uses less digits than its factorization.

53433243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63879 (or 63873 counting only the distinct ones).

The product of its digits is 12960, while the sum is 27.

The square root of 53433243 is about 7309.8045801512. The cubic root of 53433243 is about 376.6493114235.

Adding to 53433243 its reverse (34233435), we get a palindrome (87666678).

The spelling of 53433243 in words is "fifty-three million, four hundred thirty-three thousand, two hundred forty-three".