5215116461 has 2 divisors, whose sum is σ = 5215116462. Its totient is φ = 5215116460.

The previous prime is 5215116433. The next prime is 5215116539. The reversal of 5215116461 is 1646115125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4028313961 + 1186802500 = 63469^2 + 34450^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215116461 - 2²⁶ = 5148007597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215116961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607558230 + 2607558231.

It is an arithmetic number, because the mean of its divisors is an integer number (2607558231).

Almost surely, 2^5215116461 is an apocalyptic number.

It is an amenable number.

5215116461 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215116461 is an equidigital number, since it uses as much as digits as its factorization.

5215116461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 5215116461 is about 72215.7632445992. The cubic root of 5215116461 is about 1734.1553647219.

The spelling of 5215116461 in words is "five billion, two hundred fifteen million, one hundred sixteen thousand, four hundred sixty-one".