52136545 has 4 divisors (see below), whose sum is σ = 62563860. Its totient is φ = 41709232.

The previous prime is 52136521. The next prime is 52136549. The reversal of 52136545 is 54563125.

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 35952016 + 16184529 = 5996^2 + 4023^2 .

It is a cyclic number.

It is not a de Polignac number, because 52136545 - 2⁷ = 52136417 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (52136549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5213650 + ... + 5213659.

It is an arithmetic number, because the mean of its divisors is an integer number (15640965).

Almost surely, 2^52136545 is an apocalyptic number.

It is an amenable number.

52136545 is a deficient number, since it is larger than the sum of its proper divisors (10427315).

52136545 is a wasteful number, since it uses less digits than its factorization.

52136545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427314.

The product of its digits is 18000, while the sum is 31.

The square root of 52136545 is about 7220.5640361401. The cubic root of 52136545 is about 373.5775325341.

The spelling of 52136545 in words is "fifty-two million, one hundred thirty-six thousand, five hundred forty-five".