2515278523 has 2 divisors, whose sum is σ = 2515278524. Its totient is φ = 2515278522.

The previous prime is 2515278517. The next prime is 2515278553. The reversal of 2515278523 is 3258725152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515278523 - 2⁹ = 2515278011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515278553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257639261 + 1257639262.

It is an arithmetic number, because the mean of its divisors is an integer number (1257639262).

Almost surely, 2^2515278523 is an apocalyptic number.

2515278523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515278523 is an equidigital number, since it uses as much as digits as its factorization.

2515278523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 2515278523 is about 50152.5525073251. The cubic root of 2515278523 is about 1359.9680144943.

The spelling of 2515278523 in words is "two billion, five hundred fifteen million, two hundred seventy-eight thousand, five hundred twenty-three".