52666553 has 2 divisors, whose sum is σ = 52666554. Its totient is φ = 52666552.

The previous prime is 52666513. The next prime is 52666609. The reversal of 52666553 is 35566625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 7333264 = 6733^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 52666553 - 2¹⁸ = 52404409 is a prime.

It is not a weakly prime, because it can be changed into another prime (52666513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26333276 + 26333277.

It is an arithmetic number, because the mean of its divisors is an integer number (26333277).

Almost surely, 2^52666553 is an apocalyptic number.

It is an amenable number.

52666553 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666553 is an equidigital number, since it uses as much as digits as its factorization.

52666553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The square root of 52666553 is about 7257.1725210305. The cubic root of 52666553 is about 374.8391677719.

The spelling of 52666553 in words is "fifty-two million, six hundred sixty-six thousand, five hundred fifty-three".