52736657 has 4 divisors (see below), whose sum is σ = 52942116. Its totient is φ = 52531200.

The previous prime is 52736653. The next prime is 52736659. The reversal of 52736657 is 75663725.

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 50751376 + 1985281 = 7124^2 + 1409^2 .

It is a cyclic number.

It is not a de Polignac number, because 52736657 - 2² = 52736653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52736653) 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 3 ways as a sum of consecutive naturals, for example, 102344 + ... + 102857.

It is an arithmetic number, because the mean of its divisors is an integer number (13235529).

Almost surely, 2^52736657 is an apocalyptic number.

It is an amenable number.

52736657 is a deficient number, since it is larger than the sum of its proper divisors (205459).

52736657 is a wasteful number, since it uses less digits than its factorization.

52736657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205458.

The product of its digits is 264600, while the sum is 41.

The square root of 52736657 is about 7262.0008950702. Note that the first 3 decimals coincide. The cubic root of 52736657 is about 375.0054091072.

The spelling of 52736657 in words is "fifty-two million, seven hundred thirty-six thousand, six hundred fifty-seven".