5251531 has 4 divisors (see below), whose sum is σ = 5340600. Its totient is φ = 5162464.

The previous prime is 5251529. The next prime is 5251537. The reversal of 5251531 is 1351525.

5251531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5251531 - 2¹ = 5251529 is a prime.

It is a super-2 number, since 2×5251531² = 55157155687922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251537) 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, 44446 + ... + 44563.

It is an arithmetic number, because the mean of its divisors is an integer number (1335150).

Almost surely, 2^5251531 is an apocalyptic number.

5251531 is a deficient number, since it is larger than the sum of its proper divisors (89069).

5251531 is an equidigital number, since it uses as much as digits as its factorization.

5251531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89068.

The product of its digits is 750, while the sum is 22.

The square root of 5251531 is about 2291.6219147146. The cubic root of 5251531 is about 173.8182251953.

The spelling of 5251531 in words is "five million, two hundred fifty-one thousand, five hundred thirty-one".