2511255530 has 32 divisors (see below), whose sum is σ = 5192263296. Its totient is φ = 856626624.

The previous prime is 2511255511. The next prime is 2511255541. The reversal of 2511255530 is 355521152.

It is a junction number, because it is equal to n+sod(n) for n = 2511255493 and 2511255502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77264 + ... + 104843.

It is an arithmetic number, because the mean of its divisors is an integer number (162258228).

Almost surely, 2^2511255530 is an apocalyptic number.

2511255530 is an abundant number, since it is smaller than the sum of its proper divisors (2681007766).

2511255530 is a wasteful number, since it uses less digits than its factorization.

2511255530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182318.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2511255530 is about 50112.4288974302. The cubic root of 2511255530 is about 1359.2425731252.

Adding to 2511255530 its reverse (355521152), we get a palindrome (2866776682).

The spelling of 2511255530 in words is "two billion, five hundred eleven million, two hundred fifty-five thousand, five hundred thirty".