5565251 has 2 divisors, whose sum is σ = 5565252. Its totient is φ = 5565250.

The previous prime is 5565247. The next prime is 5565257. The reversal of 5565251 is 1525655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5565251 - 2² = 5565247 is a prime.

It is a Chen prime.

It is equal to p₃₈₄₉₅₀ and since 5565251 and 384950 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5565257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782625 + 2782626.

It is an arithmetic number, because the mean of its divisors is an integer number (2782626).

Almost surely, 2^5565251 is an apocalyptic number.

5565251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5565251 is an equidigital number, since it uses as much as digits as its factorization.

5565251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7500, while the sum is 29.

The square root of 5565251 is about 2359.0784217571. The cubic root of 5565251 is about 177.2127311247.

The spelling of 5565251 in words is "five million, five hundred sixty-five thousand, two hundred fifty-one".