52545637 has 2 divisors, whose sum is σ = 52545638. Its totient is φ = 52545636.

The previous prime is 52545617. The next prime is 52545643. The reversal of 52545637 is 73654525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28398241 + 24147396 = 5329^2 + 4914^2 .

It is a cyclic number.

It is not a de Polignac number, because 52545637 - 2⁷ = 52545509 is a prime.

It is a super-2 number, since 2×52545637² = 5522087935471538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52545596 and 52545605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52545607) 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 as a sum of consecutive naturals, namely, 26272818 + 26272819.

It is an arithmetic number, because the mean of its divisors is an integer number (26272819).

Almost surely, 2^52545637 is an apocalyptic number.

It is an amenable number.

52545637 is a deficient number, since it is larger than the sum of its proper divisors (1).

52545637 is an equidigital number, since it uses as much as digits as its factorization.

52545637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 37.

The square root of 52545637 is about 7248.8369411927. The cubic root of 52545637 is about 374.5520862454.

The spelling of 52545637 in words is "fifty-two million, five hundred forty-five thousand, six hundred thirty-seven".