2511151530 has 64 divisors (see below), whose sum is σ = 6351229440. Its totient is φ = 633669696.

The previous prime is 2511151459. The next prime is 2511151537. The reversal of 2511151530 is 351511152.

It is a self number, because there is not a number n which added to its sum of digits gives 2511151530.

It is not an unprimeable number, because it can be changed into a prime (2511151537) 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, 638149 + ... + 642071.

It is an arithmetic number, because the mean of its divisors is an integer number (99237960).

Almost surely, 2^2511151530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2511151530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175614720).

2511151530 is an abundant number, since it is smaller than the sum of its proper divisors (3840077910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2511151530 is a wasteful number, since it uses less digits than its factorization.

2511151530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075.

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

The square root of 2511151530 is about 50111.3912199612. The cubic root of 2511151530 is about 1359.2238091806.

Adding to 2511151530 its reverse (351511152), we get a palindrome (2862662682).

The spelling of 2511151530 in words is "two billion, five hundred eleven million, one hundred fifty-one thousand, five hundred thirty".