5247538 has 4 divisors (see below), whose sum is σ = 7871310. Its totient is φ = 2623768.

The previous prime is 5247533. The next prime is 5247581. The reversal of 5247538 is 8357425.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 4941729 + 305809 = 2223^2 + 553^2 .

It is a super-2 number, since 2×5247538² = 55073310122888, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5² + 2¹⁷ + 4¹¹ + 7 + 5⁸ + 3¹² + 8² .

It is not an unprimeable number, because it can be changed into a prime (5247533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311883 + ... + 1311886.

Almost surely, 2^5247538 is an apocalyptic number.

5247538 is a deficient number, since it is larger than the sum of its proper divisors (2623772).

5247538 is a wasteful number, since it uses less digits than its factorization.

5247538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623771.

The product of its digits is 33600, while the sum is 34.

The square root of 5247538 is about 2290.7505320309. The cubic root of 5247538 is about 173.7741598135.

It can be divided in two parts, 52 and 47538, that multiplied together give a triangular number (2471976 = T₂₂₂₃).

The spelling of 5247538 in words is "five million, two hundred forty-seven thousand, five hundred thirty-eight".