5202391 has 4 divisors (see below), whose sum is σ = 5508432. Its totient is φ = 4896352.

The previous prime is 5202377. The next prime is 5202413. The reversal of 5202391 is 1932025.

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

It is a cyclic number.

It is not a de Polignac number, because 5202391 - 2⁵ = 5202359 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (5202331) 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, 152995 + ... + 153028.

It is an arithmetic number, because the mean of its divisors is an integer number (1377108).

Almost surely, 2^5202391 is an apocalyptic number.

5202391 is a deficient number, since it is larger than the sum of its proper divisors (306041).

5202391 is a wasteful number, since it uses less digits than its factorization.

5202391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306040.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 5202391 is about 2280.8750513783. The cubic root of 5202391 is about 173.2743705596.

The spelling of 5202391 in words is "five million, two hundred two thousand, three hundred ninety-one".