5251689 has 8 divisors (see below), whose sum is σ = 7780320. Its totient is φ = 3501108.

The previous prime is 5251663. The next prime is 5251711. The reversal of 5251689 is 9861525.

It is a happy number.

It is not a de Polignac number, because 5251689 - 2²⁰ = 4203113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5251189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97227 + ... + 97280.

It is an arithmetic number, because the mean of its divisors is an integer number (972540).

Almost surely, 2^5251689 is an apocalyptic number.

It is an amenable number.

5251689 is a deficient number, since it is larger than the sum of its proper divisors (2528631).

5251689 is a wasteful number, since it uses less digits than its factorization.

5251689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194516 (or 194510 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5251689 is about 2291.6563878557. The cubic root of 5251689 is about 173.8199683698.

The spelling of 5251689 in words is "five million, two hundred fifty-one thousand, six hundred eighty-nine".