5211505361 has 4 divisors (see below), whose sum is σ = 5212910400. Its totient is φ = 5210100324.

The previous prime is 5211505339. The next prime is 5211505381. The reversal of 5211505361 is 1635051125.

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 5211505361 - 2¹⁴ = 5211488977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5211505381) 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, 696941 + ... + 704378.

It is an arithmetic number, because the mean of its divisors is an integer number (1303227600).

Almost surely, 2^5211505361 is an apocalyptic number.

It is an amenable number.

5211505361 is a deficient number, since it is larger than the sum of its proper divisors (1405039).

5211505361 is a wasteful number, since it uses less digits than its factorization.

5211505361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405038.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 5211505361 is about 72190.7567559726. The cubic root of 5211505361 is about 1733.7550122453.

Adding to 5211505361 its reverse (1635051125), we get a palindrome (6846556486).

The spelling of 5211505361 in words is "five billion, two hundred eleven million, five hundred five thousand, three hundred sixty-one".