5237721 has 12 divisors (see below), whose sum is σ = 7894848. Its totient is φ = 3339864.

The previous prime is 5237707. The next prime is 5237723. The reversal of 5237721 is 1277325.

It is not a de Polignac number, because 5237721 - 2⁵ = 5237689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5237723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12445 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (657904).

Almost surely, 2^5237721 is an apocalyptic number.

It is an amenable number.

5237721 is a deficient number, since it is larger than the sum of its proper divisors (2657127).

5237721 is a wasteful number, since it uses less digits than its factorization.

5237721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25332 (or 25329 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 5237721 is about 2288.6067814284. The cubic root of 5237721 is about 173.6657276403.

It can be divided in two parts, 52 and 37721, that added together give a palindrome (37773).

The spelling of 5237721 in words is "five million, two hundred thirty-seven thousand, seven hundred twenty-one".