2515278553 has 2 divisors, whose sum is σ = 2515278554. Its totient is φ = 2515278552.

The previous prime is 2515278523. The next prime is 2515278559. The reversal of 2515278553 is 3558725152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2299394304 + 215884249 = 47952^2 + 14693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515278553 - 2¹³ = 2515270361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2515278559) 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, 1257639276 + 1257639277.

It is an arithmetic number, because the mean of its divisors is an integer number (1257639277).

Almost surely, 2^2515278553 is an apocalyptic number.

It is an amenable number.

2515278553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515278553 is an equidigital number, since it uses as much as digits as its factorization.

2515278553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420000, while the sum is 43.

The square root of 2515278553 is about 50152.5528064126. The cubic root of 2515278553 is about 1359.9680199011.

The spelling of 2515278553 in words is "two billion, five hundred fifteen million, two hundred seventy-eight thousand, five hundred fifty-three".