2515222747 has 2 divisors, whose sum is σ = 2515222748. Its totient is φ = 2515222746.

The previous prime is 2515222729. The next prime is 2515222807. The reversal of 2515222747 is 7472225152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515222747 - 2¹⁵ = 2515189979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515222447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257611373 + 1257611374.

It is an arithmetic number, because the mean of its divisors is an integer number (1257611374).

Almost surely, 2^2515222747 is an apocalyptic number.

2515222747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515222747 is an equidigital number, since it uses as much as digits as its factorization.

2515222747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 37.

The square root of 2515222747 is about 50151.9964408198. The cubic root of 2515222747 is about 1359.9579620440.

Adding to 2515222747 its reverse (7472225152), we get a palindrome (9987447899).

The spelling of 2515222747 in words is "two billion, five hundred fifteen million, two hundred twenty-two thousand, seven hundred forty-seven".