2576142221 has 8 divisors (see below), whose sum is σ = 2630467224. Its totient is φ = 2522029120.

The previous prime is 2576142197. The next prime is 2576142223. The reversal of 2576142221 is 1222416752.

It can be written as a sum of positive squares in 4 ways, for example, as 37393225 + 2538748996 = 6115^2 + 50386^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2576142221 - 2⁶ = 2576142157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2576142223) 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 7 ways as a sum of consecutive naturals, for example, 28286 + ... + 77151.

It is an arithmetic number, because the mean of its divisors is an integer number (328808403).

Almost surely, 2^2576142221 is an apocalyptic number.

It is an amenable number.

2576142221 is a deficient number, since it is larger than the sum of its proper divisors (54325003).

2576142221 is a wasteful number, since it uses less digits than its factorization.

2576142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105951.

The product of its digits is 13440, while the sum is 32.

The square root of 2576142221 is about 50755.7112155864. The cubic root of 2576142221 is about 1370.8500276551.

Adding to 2576142221 its reverse (1222416752), we get a palindrome (3798558973).

The spelling of 2576142221 in words is "two billion, five hundred seventy-six million, one hundred forty-two thousand, two hundred twenty-one".