2567681201 has 4 divisors (see below), whose sum is σ = 2567822832. Its totient is φ = 2567539572.

The previous prime is 2567681197. The next prime is 2567681213. The reversal of 2567681201 is 1021867652.

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 2567681201 - 2² = 2567681197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2567681251) 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, 38795 + ... + 81488.

It is an arithmetic number, because the mean of its divisors is an integer number (641955708).

Almost surely, 2^2567681201 is an apocalyptic number.

It is an amenable number.

2567681201 is a deficient number, since it is larger than the sum of its proper divisors (141631).

2567681201 is a wasteful number, since it uses less digits than its factorization.

2567681201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141630.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2567681201 is about 50672.2922414212. The cubic root of 2567681201 is about 1369.3475858917.

The spelling of 2567681201 in words is "two billion, five hundred sixty-seven million, six hundred eighty-one thousand, two hundred one".