5237287261 has 2 divisors, whose sum is σ = 5237287262. Its totient is φ = 5237287260.

The previous prime is 5237287241. The next prime is 5237287267. The reversal of 5237287261 is 1627827325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3028851225 + 2208436036 = 55035^2 + 46994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5237287261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5237287267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2618643630 + 2618643631.

It is an arithmetic number, because the mean of its divisors is an integer number (2618643631).

Almost surely, 2^5237287261 is an apocalyptic number.

It is an amenable number.

5237287261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5237287261 is an equidigital number, since it uses as much as digits as its factorization.

5237287261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 5237287261 is about 72369.1043263629. The cubic root of 5237287261 is about 1736.6093371822.

The spelling of 5237287261 in words is "five billion, two hundred thirty-seven million, two hundred eighty-seven thousand, two hundred sixty-one".