5251806 has 24 divisors (see below), whose sum is σ = 13004784. Its totient is φ = 1500480.

The previous prime is 5251789. The next prime is 5251819. The reversal of 5251806 is 6081525.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5251806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20715 + ... + 20966.

It is an arithmetic number, because the mean of its divisors is an integer number (541866).

Almost surely, 2^5251806 is an apocalyptic number.

5251806 is an abundant number, since it is smaller than the sum of its proper divisors (7752978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5251806 is a wasteful number, since it uses less digits than its factorization.

5251806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41696 (or 41693 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5251806 is about 2291.6819151008. The cubic root of 5251806 is about 173.8212591790.

The spelling of 5251806 in words is "five million, two hundred fifty-one thousand, eight hundred six".