5224781 has 4 divisors (see below), whose sum is σ = 5271132. Its totient is φ = 5178432.

The previous prime is 5224759. The next prime is 5224783. The reversal of 5224781 is 1874225.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2449225 + 2775556 = 1565^2 + 1666^2 .

It is a cyclic number.

It is not a de Polignac number, because 5224781 - 2⁶ = 5224717 is a prime.

It is a super-2 number, since 2×5224781² = 54596672995922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5224783) 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, 23006 + ... + 23231.

It is an arithmetic number, because the mean of its divisors is an integer number (1317783).

Almost surely, 2^5224781 is an apocalyptic number.

It is an amenable number.

5224781 is a deficient number, since it is larger than the sum of its proper divisors (46351).

5224781 is a wasteful number, since it uses less digits than its factorization.

5224781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46350.

The product of its digits is 4480, while the sum is 29.

The square root of 5224781 is about 2285.7779857195. Note that the first 3 decimals coincide. The cubic root of 5224781 is about 173.5225936520.

The spelling of 5224781 in words is "five million, two hundred twenty-four thousand, seven hundred eighty-one".