2571604245 has 24 divisors (see below), whose sum is σ = 5094226176. Its totient is φ = 1175590368.

The previous prime is 2571604241. The next prime is 2571604247. The reversal of 2571604245 is 5424061752.

It is a happy number.

2571604245 is a `hidden beast` number, since 2 + 5 + 7 + 1 + 604 + 2 + 45 = 666.

It is not a de Polignac number, because 2571604245 - 2² = 2571604241 is a prime.

It is a super-2 number, since 2×2571604245² = 13226296785804040050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2571604241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4081597 + ... + 4082226.

It is an arithmetic number, because the mean of its divisors is an integer number (212259424).

Almost surely, 2^2571604245 is an apocalyptic number.

It is an amenable number.

2571604245 is a deficient number, since it is larger than the sum of its proper divisors (2522621931).

2571604245 is a wasteful number, since it uses less digits than its factorization.

2571604245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163841 (or 8163838 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2571604245 is about 50710.9874189016. The cubic root of 2571604245 is about 1370.0446191091.

Adding to 2571604245 its reverse (5424061752), we get a palindrome (7995665997).

The spelling of 2571604245 in words is "two billion, five hundred seventy-one million, six hundred four thousand, two hundred forty-five".