5251993 has 4 divisors (see below), whose sum is σ = 5256720. Its totient is φ = 5247268.

The previous prime is 5251951. The next prime is 5252011. The reversal of 5251993 is 3991525.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5251993 - 2⁹ = 5251481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251903) 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, 318 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (1314180).

Almost surely, 2^5251993 is an apocalyptic number.

It is an amenable number.

5251993 is a deficient number, since it is larger than the sum of its proper divisors (4727).

5251993 is a wasteful number, since it uses less digits than its factorization.

5251993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726.

The product of its digits is 12150, while the sum is 34.

The square root of 5251993 is about 2291.7227144661. The cubic root of 5251993 is about 173.8233222274.

The spelling of 5251993 in words is "five million, two hundred fifty-one thousand, nine hundred ninety-three".