2511064261 has 4 divisors (see below), whose sum is σ = 2620240992. Its totient is φ = 2401887532.

The previous prime is 2511064247. The next prime is 2511064273. The reversal of 2511064261 is 1624601152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2511064261 - 2¹³ = 2511056069 is a prime.

It is a super-2 number, since 2×2511064261² = 12610887445742952242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511064211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54588331 + ... + 54588376.

It is an arithmetic number, because the mean of its divisors is an integer number (655060248).

Almost surely, 2^2511064261 is an apocalyptic number.

It is an amenable number.

2511064261 is a deficient number, since it is larger than the sum of its proper divisors (109176731).

2511064261 is a wasteful number, since it uses less digits than its factorization.

2511064261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109176730.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2511064261 is about 50110.5204622742. The cubic root of 2511064261 is about 1359.2080634858.

The spelling of 2511064261 in words is "two billion, five hundred eleven million, sixty-four thousand, two hundred sixty-one".