2512664065 has 8 divisors (see below), whose sum is σ = 3025928808. Its totient is φ = 2002976640.

The previous prime is 2512664059. The next prime is 2512664069. The reversal of 2512664065 is 5604662152.

It can be written as a sum of positive squares in 4 ways, for example, as 235561104 + 2277102961 = 15348^2 + 47719^2 .

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

It is not a de Polignac number, because 2512664065 - 2²⁷ = 2378446337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512664069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892782 + ... + 895591.

It is an arithmetic number, because the mean of its divisors is an integer number (378241101).

Almost surely, 2^2512664065 is an apocalyptic number.

It is an amenable number.

2512664065 is a deficient number, since it is larger than the sum of its proper divisors (513264743).

2512664065 is a wasteful number, since it uses less digits than its factorization.

2512664065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788659.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2512664065 is about 50126.4806763850. The cubic root of 2512664065 is about 1359.4966535879.

The spelling of 2512664065 in words is "two billion, five hundred twelve million, six hundred sixty-four thousand, sixty-five".