52636537 has 4 divisors (see below), whose sum is σ = 54451620. Its totient is φ = 50821456.

The previous prime is 52636531. The next prime is 52636541. The reversal of 52636537 is 73563625.

It is a happy number.

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 29365561 + 23270976 = 5419^2 + 4824^2 .

It is not a de Polignac number, because 52636537 - 2¹¹ = 52634489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52636496 and 52636505.

It is not an unprimeable number, because it can be changed into a prime (52636531) 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, 907498 + ... + 907555.

It is an arithmetic number, because the mean of its divisors is an integer number (13612905).

Almost surely, 2^52636537 is an apocalyptic number.

It is an amenable number.

52636537 is a deficient number, since it is larger than the sum of its proper divisors (1815083).

52636537 is a wasteful number, since it uses less digits than its factorization.

52636537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815082.

The product of its digits is 113400, while the sum is 37.

The square root of 52636537 is about 7255.1042032489. The cubic root of 52636537 is about 374.7679441335.

The spelling of 52636537 in words is "fifty-two million, six hundred thirty-six thousand, five hundred thirty-seven".