5250989 has 4 divisors (see below), whose sum is σ = 5258556. Its totient is φ = 5243424.

The previous prime is 5250967. The next prime is 5251007. The reversal of 5250989 is 9890525.

5250989 = 1322² + 1323² + 1324².

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 432964 + 4818025 = 658^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 5250989 - 2²⁰ = 4202413 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5250919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (1314639).

Almost surely, 2^5250989 is an apocalyptic number.

It is an amenable number.

5250989 is a deficient number, since it is larger than the sum of its proper divisors (7567).

5250989 is an equidigital number, since it uses as much as digits as its factorization.

5250989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 5250989 is about 2291.5036548083. The cubic root of 5250989 is about 173.8122451793.

The spelling of 5250989 in words is "five million, two hundred fifty thousand, nine hundred eighty-nine".