52145233 has 4 divisors (see below), whose sum is σ = 59594560. Its totient is φ = 44695908.

The previous prime is 52145227. The next prime is 52145237. The reversal of 52145233 is 33254125.

52145233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52145233 - 2¹⁷ = 52014161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52145198 and 52145207.

It is not an unprimeable number, because it can be changed into a prime (52145237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3724653 + ... + 3724666.

It is an arithmetic number, because the mean of its divisors is an integer number (14898640).

Almost surely, 2^52145233 is an apocalyptic number.

It is an amenable number.

52145233 is a deficient number, since it is larger than the sum of its proper divisors (7449327).

52145233 is an equidigital number, since it uses as much as digits as its factorization.

52145233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449326.

The product of its digits is 3600, while the sum is 25.

The square root of 52145233 is about 7221.1656261299. The cubic root of 52145233 is about 373.5982822874.

Adding to 52145233 its reverse (33254125), we get a palindrome (85399358).

It can be divided in two parts, 521 and 45233, that added together give a palindrome (45754).

The spelling of 52145233 in words is "fifty-two million, one hundred forty-five thousand, two hundred thirty-three".