5638725 has 36 divisors (see below), whose sum is σ = 10639200. Its totient is φ = 2846880.

The previous prime is 5638709. The next prime is 5638751. The reversal of 5638725 is 5278365.

It is not a de Polignac number, because 5638725 - 2⁴ = 5638709 is a prime.

It is an Ulam number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5638725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3616 + ... + 4934.

Almost surely, 2^5638725 is an apocalyptic number.

It is an amenable number.

5638725 is a deficient number, since it is larger than the sum of its proper divisors (5000475).

5638725 is a wasteful number, since it uses less digits than its factorization.

5638725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1346 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 5638725 is about 2374.5999663101. The cubic root of 5638725 is about 177.9891947319.

It can be divided in two parts, 56 and 38725, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 5638725 in words is "five million, six hundred thirty-eight thousand, seven hundred twenty-five".