52152785 has 4 divisors (see below), whose sum is σ = 62583348. Its totient is φ = 41722224.

The previous prime is 52152773. The next prime is 52152809. The reversal of 52152785 is 58725125.

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 22819729 + 29333056 = 4777^2 + 5416^2 .

It is a cyclic number.

It is not a de Polignac number, because 52152785 - 2⁴ = 52152769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215274 + ... + 5215283.

It is an arithmetic number, because the mean of its divisors is an integer number (15645837).

Almost surely, 2^52152785 is an apocalyptic number.

It is an amenable number.

52152785 is a deficient number, since it is larger than the sum of its proper divisors (10430563).

52152785 is a wasteful number, since it uses less digits than its factorization.

52152785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430562.

The product of its digits is 28000, while the sum is 35.

The square root of 52152785 is about 7221.6885144681. The cubic root of 52152785 is about 373.6163170330.

It can be divided in two parts, 5215 and 2785, that added together give a cube (8000 = 20³).

The spelling of 52152785 in words is "fifty-two million, one hundred fifty-two thousand, seven hundred eighty-five".