5257506 has 16 divisors (see below), whose sum is σ = 10612800. Its totient is φ = 1736208.

The previous prime is 5257493. The next prime is 5257517. The reversal of 5257506 is 6057525.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3366 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (663300).

Almost surely, 2^5257506 is an apocalyptic number.

5257506 is an abundant number, since it is smaller than the sum of its proper divisors (5355294).

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

5257506 is a wasteful number, since it uses less digits than its factorization.

5257506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 5257506 is about 2292.9252059324. The cubic root of 5257506 is about 173.8841215510.

The spelling of 5257506 in words is "five million, two hundred fifty-seven thousand, five hundred six".