2515001287 has 2 divisors, whose sum is σ = 2515001288. Its totient is φ = 2515001286.

The previous prime is 2515001219. The next prime is 2515001297. The reversal of 2515001287 is 7821005152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2515001287 is a prime.

It is a super-2 number, since 2×2515001287² = 12650462947223312738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2515001297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257500643 + 1257500644.

It is an arithmetic number, because the mean of its divisors is an integer number (1257500644).

Almost surely, 2^2515001287 is an apocalyptic number.

2515001287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515001287 is an equidigital number, since it uses as much as digits as its factorization.

2515001287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2515001287 is about 50149.7885040406. The cubic root of 2515001287 is about 1359.9180470729.

The spelling of 2515001287 in words is "two billion, five hundred fifteen million, one thousand, two hundred eighty-seven".