52515235 has 4 divisors (see below), whose sum is σ = 63018288. Its totient is φ = 42012184.

The previous prime is 52515217. The next prime is 52515263. The reversal of 52515235 is 53251525.

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

It is a cyclic number.

It is not a de Polignac number, because 52515235 - 2⁹ = 52514723 is a prime.

It is a super-4 number, since 4×52515235⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 5251519 + ... + 5251528.

It is an arithmetic number, because the mean of its divisors is an integer number (15754572).

Almost surely, 2^52515235 is an apocalyptic number.

52515235 is a deficient number, since it is larger than the sum of its proper divisors (10503053).

52515235 is a wasteful number, since it uses less digits than its factorization.

52515235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10503052.

The product of its digits is 7500, while the sum is 28.

The square root of 52515235 is about 7246.7396117151. The cubic root of 52515235 is about 374.4798358487.

The spelling of 52515235 in words is "fifty-two million, five hundred fifteen thousand, two hundred thirty-five".