52566403 has 2 divisors, whose sum is σ = 52566404. Its totient is φ = 52566402.

The previous prime is 52566383. The next prime is 52566419. The reversal of 52566403 is 30466525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52566403 - 2¹³ = 52558211 is a prime.

It is not a weakly prime, because it can be changed into another prime (52566203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26283201 + 26283202.

It is an arithmetic number, because the mean of its divisors is an integer number (26283202).

Almost surely, 2^52566403 is an apocalyptic number.

52566403 is a deficient number, since it is larger than the sum of its proper divisors (1).

52566403 is an equidigital number, since it uses as much as digits as its factorization.

52566403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 52566403 is about 7250.2691674172. The cubic root of 52566403 is about 374.6014206569.

The spelling of 52566403 in words is "fifty-two million, five hundred sixty-six thousand, four hundred three".