52665749 has 2 divisors, whose sum is σ = 52665750. Its totient is φ = 52665748.

The previous prime is 52665737. The next prime is 52665793. The reversal of 52665749 is 94756625.

It is an a-pointer prime, because the next prime (52665793) can be obtained adding 52665749 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 465124 = 7225^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 52665749 - 2²⁰ = 51617173 is a prime.

It is a super-2 number, since 2×52665749² = 5547362235462002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52665719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26332874 + 26332875.

It is an arithmetic number, because the mean of its divisors is an integer number (26332875).

Almost surely, 2^52665749 is an apocalyptic number.

It is an amenable number.

52665749 is a deficient number, since it is larger than the sum of its proper divisors (1).

52665749 is an equidigital number, since it uses as much as digits as its factorization.

52665749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The square root of 52665749 is about 7257.1171273447. The cubic root of 52665749 is about 374.8372603487.

The spelling of 52665749 in words is "fifty-two million, six hundred sixty-five thousand, seven hundred forty-nine".