53565037 has 2 divisors, whose sum is σ = 53565038. Its totient is φ = 53565036.

The previous prime is 53565023. The next prime is 53565041. The reversal of 53565037 is 73056535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52577001 + 988036 = 7251^2 + 994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53565037 is a prime.

It is a super-2 number, since 2×53565037² = 5738426377622738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53564993 and 53565011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53565067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26782518 + 26782519.

It is an arithmetic number, because the mean of its divisors is an integer number (26782519).

Almost surely, 2^53565037 is an apocalyptic number.

It is an amenable number.

53565037 is a deficient number, since it is larger than the sum of its proper divisors (1).

53565037 is an equidigital number, since it uses as much as digits as its factorization.

53565037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 53565037 is about 7318.8139066382. The cubic root of 53565037 is about 376.9587278072.

The spelling of 53565037 in words is "fifty-three million, five hundred sixty-five thousand, thirty-seven".