5249869 has 2 divisors, whose sum is σ = 5249870. Its totient is φ = 5249868.

The previous prime is 5249861. The next prime is 5249873. The reversal of 5249869 is 9689425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5116644 + 133225 = 2262^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 5249869 - 2³ = 5249861 is a prime.

It is a super-2 number, since 2×5249869² = 55122249034322, which contains 22 as substring.

5249869 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5249861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2624934 + 2624935.

It is an arithmetic number, because the mean of its divisors is an integer number (2624935).

Almost surely, 2^5249869 is an apocalyptic number.

It is an amenable number.

5249869 is a deficient number, since it is larger than the sum of its proper divisors (1).

5249869 is an equidigital number, since it uses as much as digits as its factorization.

5249869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 5249869 is about 2291.2592607560. The cubic root of 5249869 is about 173.7998866466.

The spelling of 5249869 in words is "five million, two hundred forty-nine thousand, eight hundred sixty-nine".