52515433 has 4 divisors (see below), whose sum is σ = 54326340. Its totient is φ = 50704528.

The previous prime is 52515391. The next prime is 52515439. The reversal of 52515433 is 33451525.

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 41306329 + 11209104 = 6427^2 + 3348^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52515433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52515439) 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, 905410 + ... + 905467.

It is an arithmetic number, because the mean of its divisors is an integer number (13581585).

Almost surely, 2^52515433 is an apocalyptic number.

It is an amenable number.

52515433 is a deficient number, since it is larger than the sum of its proper divisors (1810907).

52515433 is a wasteful number, since it uses less digits than its factorization.

52515433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810906.

The product of its digits is 9000, while the sum is 28.

The square root of 52515433 is about 7246.7532730182. The cubic root of 52515433 is about 374.4803064861.

Adding to 52515433 its reverse (33451525), we get a palindrome (85966958).

It can be divided in two parts, 525 and 15433, that multiplied together give a triangular number (8102325 = T₄₀₂₅).

The spelling of 52515433 in words is "fifty-two million, five hundred fifteen thousand, four hundred thirty-three".