52636545 has 24 divisors (see below), whose sum is σ = 98255976. Its totient is φ = 25913088.

The previous prime is 52636541. The next prime is 52636553. The reversal of 52636545 is 54563625.

It is a happy number.

52636545 is a `hidden beast` number, since 52 + 63 + 6 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9511056 + 43125489 = 3084^2 + 6567^2 .

It is not a de Polignac number, because 52636545 - 2² = 52636541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52636541) 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 23 ways as a sum of consecutive naturals, for example, 44404 + ... + 45573.

It is an arithmetic number, because the mean of its divisors is an integer number (4093999).

Almost surely, 2^52636545 is an apocalyptic number.

It is an amenable number.

52636545 is a deficient number, since it is larger than the sum of its proper divisors (45619431).

52636545 is a wasteful number, since it uses less digits than its factorization.

52636545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90001 (or 89998 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 52636545 is about 7255.1047545849. The cubic root of 52636545 is about 374.7679631200.

The spelling of 52636545 in words is "fifty-two million, six hundred thirty-six thousand, five hundred forty-five".