5212267391 has 4 divisors (see below), whose sum is σ = 5217227784. Its totient is φ = 5207307000.

The previous prime is 5212267381. The next prime is 5212267409. The reversal of 5212267391 is 1937622125.

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 5212267391 - 2¹⁸ = 5212005247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5212267301) 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, 2478620 + ... + 2480721.

It is an arithmetic number, because the mean of its divisors is an integer number (1304306946).

Almost surely, 2^5212267391 is an apocalyptic number.

5212267391 is a deficient number, since it is larger than the sum of its proper divisors (4960393).

5212267391 is a wasteful number, since it uses less digits than its factorization.

5212267391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960392.

The product of its digits is 45360, while the sum is 38.

The square root of 5212267391 is about 72196.0344548092. The cubic root of 5212267391 is about 1733.8395117550.

The spelling of 5212267391 in words is "five billion, two hundred twelve million, two hundred sixty-seven thousand, three hundred ninety-one".