5251503 has 4 divisors (see below), whose sum is σ = 7002008. Its totient is φ = 3501000.

The previous prime is 5251481. The next prime is 5251507. The reversal of 5251503 is 3051525.

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

It is not a de Polignac number, because 5251503 - 2⁸ = 5251247 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5251503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251507) 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, 875248 + ... + 875253.

It is an arithmetic number, because the mean of its divisors is an integer number (1750502).

Almost surely, 2^5251503 is an apocalyptic number.

5251503 is a deficient number, since it is larger than the sum of its proper divisors (1750505).

5251503 is a wasteful number, since it uses less digits than its factorization.

5251503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750504.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 5251503 is about 2291.6158054962. The cubic root of 5251503 is about 173.8179162747.

The spelling of 5251503 in words is "five million, two hundred fifty-one thousand, five hundred three".