2675567021 has 4 divisors (see below), whose sum is σ = 2676818844. Its totient is φ = 2674315200.

The previous prime is 2675566991. The next prime is 2675567093. The reversal of 2675567021 is 1207655762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1207655762 = 2 ⋅603827881.

It can be written as a sum of positive squares in 2 ways, for example, as 2602122121 + 73444900 = 51011^2 + 8570^2 .

It is a cyclic number.

It is not a de Polignac number, because 2675567021 - 2¹⁴ = 2675550637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2675567021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2675567221) 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, 622700 + ... + 626981.

It is an arithmetic number, because the mean of its divisors is an integer number (669204711).

Almost surely, 2^2675567021 is an apocalyptic number.

It is an amenable number.

2675567021 is a deficient number, since it is larger than the sum of its proper divisors (1251823).

2675567021 is a wasteful number, since it uses less digits than its factorization.

2675567021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251822.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 2675567021 is about 51725.8834723971. The cubic root of 2675567021 is about 1388.2636257101.

The spelling of 2675567021 in words is "two billion, six hundred seventy-five million, five hundred sixty-seven thousand, twenty-one".