5215205287 has 2 divisors, whose sum is σ = 5215205288. Its totient is φ = 5215205286.

The previous prime is 5215205279. The next prime is 5215205323. The reversal of 5215205287 is 7825025125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5215205287 - 2³ = 5215205279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5215205257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2607602643 + 2607602644.

It is an arithmetic number, because the mean of its divisors is an integer number (2607602644).

Almost surely, 2^5215205287 is an apocalyptic number.

5215205287 is a deficient number, since it is larger than the sum of its proper divisors (1).

5215205287 is an equidigital number, since it uses as much as digits as its factorization.

5215205287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 5215205287 is about 72216.3782462123. The cubic root of 5215205287 is about 1734.1652102809.

The spelling of 5215205287 in words is "five billion, two hundred fifteen million, two hundred five thousand, two hundred eighty-seven".