5211340637 has 4 divisors (see below), whose sum is σ = 5215384860. Its totient is φ = 5207296416.

The previous prime is 5211340619. The next prime is 5211340643. The reversal of 5211340637 is 7360431125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4798194361 + 413146276 = 69269^2 + 20326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5211340637 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 (5211340697) 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, 2020178 + ... + 2022755.

It is an arithmetic number, because the mean of its divisors is an integer number (1303846215).

Almost surely, 2^5211340637 is an apocalyptic number.

It is an amenable number.

5211340637 is a deficient number, since it is larger than the sum of its proper divisors (4044223).

5211340637 is a wasteful number, since it uses less digits than its factorization.

5211340637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044222.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 5211340637 is about 72189.6158529743. The cubic root of 5211340637 is about 1733.7367453499.

The spelling of 5211340637 in words is "five billion, two hundred eleven million, three hundred forty thousand, six hundred thirty-seven".