25566053 has 2 divisors, whose sum is σ = 25566054. Its totient is φ = 25566052.

The previous prime is 25566049. The next prime is 25566089. The reversal of 25566053 is 35066552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21696964 + 3869089 = 4658^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 25566053 - 2² = 25566049 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25565053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12783026 + 12783027.

It is an arithmetic number, because the mean of its divisors is an integer number (12783027).

Almost surely, 2^25566053 is an apocalyptic number.

It is an amenable number.

25566053 is a deficient number, since it is larger than the sum of its proper divisors (1).

25566053 is an equidigital number, since it uses as much as digits as its factorization.

25566053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 25566053 is about 5056.2884609168. The cubic root of 25566053 is about 294.5921895395.

The spelling of 25566053 in words is "twenty-five million, five hundred sixty-six thousand, fifty-three".