5638501 has 4 divisors (see below), whose sum is σ = 6151104. Its totient is φ = 5125900.

The previous prime is 5638489. The next prime is 5638517. The reversal of 5638501 is 1058365.

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.

It is a cyclic number.

It is not a de Polignac number, because 5638501 - 2¹¹ = 5636453 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

5638501 is a lucky number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 5638501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638531) 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, 256285 + ... + 256306.

It is an arithmetic number, because the mean of its divisors is an integer number (1537776).

Almost surely, 2^5638501 is an apocalyptic number.

It is an amenable number.

5638501 is a deficient number, since it is larger than the sum of its proper divisors (512603).

5638501 is a wasteful number, since it uses less digits than its factorization.

5638501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512602.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5638501 is about 2374.5528000026. The cubic root of 5638501 is about 177.9868378097.

The spelling of 5638501 in words is "five million, six hundred thirty-eight thousand, five hundred one".