2511145061 has 4 divisors (see below), whose sum is σ = 2597736300. Its totient is φ = 2424553824.

The previous prime is 2511145033. The next prime is 2511145067. The reversal of 2511145061 is 1605411152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 672364900 + 1838780161 = 25930^2 + 42881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2511145061 - 2²⁶ = 2444036197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2511145061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511145067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43295576 + ... + 43295633.

It is an arithmetic number, because the mean of its divisors is an integer number (649434075).

Almost surely, 2^2511145061 is an apocalyptic number.

It is an amenable number.

2511145061 is a deficient number, since it is larger than the sum of its proper divisors (86591239).

2511145061 is an equidigital number, since it uses as much as digits as its factorization.

2511145061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86591238.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 2511145061 is about 50111.3266737172. The cubic root of 2511145061 is about 1359.2226420100. Note that the first 3 decimals are identical.

The spelling of 2511145061 in words is "two billion, five hundred eleven million, one hundred forty-five thousand, sixty-one".