2515531011 has 16 divisors (see below), whose sum is σ = 4034937600. Its totient is φ = 1361791008.

The previous prime is 2515531001. The next prime is 2515531033. The reversal of 2515531011 is 1101355152.

It is not a de Polignac number, because 2515531011 - 2¹¹ = 2515528963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2515531001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3151896 + ... + 3152693.

It is an arithmetic number, because the mean of its divisors is an integer number (252183600).

Almost surely, 2^2515531011 is an apocalyptic number.

2515531011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2515531011 is a deficient number, since it is larger than the sum of its proper divisors (1519406589).

2515531011 is a wasteful number, since it uses less digits than its factorization.

2515531011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304618.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 2515531011 is about 50155.0696440549. The cubic root of 2515531011 is about 1360.0135182840.

Adding to 2515531011 its reverse (1101355152), we get a palindrome (3616886163).

The spelling of 2515531011 in words is "two billion, five hundred fifteen million, five hundred thirty-one thousand, eleven".