42733253 has 4 divisors (see below), whose sum is σ = 43173900. Its totient is φ = 42292608.

The previous prime is 42733247. The next prime is 42733277. The reversal of 42733253 is 35233724.

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 9012004 + 33721249 = 3002^2 + 5807^2 .

It is a cyclic number.

It is not a de Polignac number, because 42733253 - 2⁴ = 42733237 is a prime.

It is a super-2 number, since 2×42733253² = 3652261823924018, 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 (42733753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220178 + ... + 220371.

It is an arithmetic number, because the mean of its divisors is an integer number (10793475).

Almost surely, 2^42733253 is an apocalyptic number.

It is an amenable number.

42733253 is a deficient number, since it is larger than the sum of its proper divisors (440647).

42733253 is an equidigital number, since it uses as much as digits as its factorization.

42733253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440646.

The product of its digits is 15120, while the sum is 29.

The square root of 42733253 is about 6537.0676147643. The cubic root of 42733253 is about 349.6138680402.

Adding to 42733253 its reverse (35233724), we get a palindrome (77966977).

The spelling of 42733253 in words is "forty-two million, seven hundred thirty-three thousand, two hundred fifty-three".