2515521255 has 32 divisors (see below), whose sum is σ = 4386686976. Its totient is φ = 1223481984.

The previous prime is 2515521241. The next prime is 2515521259. The reversal of 2515521255 is 5521255152.

It is a happy number.

It is not a de Polignac number, because 2515521255 - 2⁵ = 2515521223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2515521259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61527 + ... + 93896.

It is an arithmetic number, because the mean of its divisors is an integer number (137083968).

Almost surely, 2^2515521255 is an apocalyptic number.

2515521255 is a deficient number, since it is larger than the sum of its proper divisors (1871165721).

2515521255 is a wasteful number, since it uses less digits than its factorization.

2515521255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155527.

The product of its digits is 25000, while the sum is 33.

The square root of 2515521255 is about 50154.9723855970. The cubic root of 2515521255 is about 1360.0117600987.

The spelling of 2515521255 in words is "two billion, five hundred fifteen million, five hundred twenty-one thousand, two hundred fifty-five".