5240286509 has 2 divisors, whose sum is σ = 5240286510. Its totient is φ = 5240286508.

The previous prime is 5240286503. The next prime is 5240286529. The reversal of 5240286509 is 9056820425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4074268900 + 1166017609 = 63830^2 + 34147^2 .

It is a cyclic number.

It is not a de Polignac number, because 5240286509 - 2⁸ = 5240286253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5240286503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2620143254 + 2620143255.

It is an arithmetic number, because the mean of its divisors is an integer number (2620143255).

Almost surely, 2^5240286509 is an apocalyptic number.

It is an amenable number.

5240286509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5240286509 is an equidigital number, since it uses as much as digits as its factorization.

5240286509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 5240286509 is about 72389.8232419447. The cubic root of 5240286509 is about 1736.9407764611.

The spelling of 5240286509 in words is "five billion, two hundred forty million, two hundred eighty-six thousand, five hundred nine".