52639733 has 2 divisors, whose sum is σ = 52639734. Its totient is φ = 52639732.

The previous prime is 52639729. The next prime is 52639751. The reversal of 52639733 is 33793625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 7171684 = 6743^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 52639733 - 2² = 52639729 is a prime.

It is a super-2 number, since 2×52639733² = 5541882980622578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52639703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26319866 + 26319867.

It is an arithmetic number, because the mean of its divisors is an integer number (26319867).

Almost surely, 2^52639733 is an apocalyptic number.

It is an amenable number.

52639733 is a deficient number, since it is larger than the sum of its proper divisors (1).

52639733 is an equidigital number, since it uses as much as digits as its factorization.

52639733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 38.

The square root of 52639733 is about 7255.3244586304. The cubic root of 52639733 is about 374.7755290684.

The spelling of 52639733 in words is "fifty-two million, six hundred thirty-nine thousand, seven hundred thirty-three".