2565376234 has 4 divisors (see below), whose sum is σ = 3848064354. Its totient is φ = 1282688116.

The previous prime is 2565376223. The next prime is 2565376267. The reversal of 2565376234 is 4326735652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1544254209 + 1021122025 = 39297^2 + 31955^2 .

It is a super-5 number, since 5×2565376234⁵ (a number of 48 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641344057 + ... + 641344060.

Almost surely, 2^2565376234 is an apocalyptic number.

2565376234 is a deficient number, since it is larger than the sum of its proper divisors (1282688120).

2565376234 is a wasteful number, since it uses less digits than its factorization.

2565376234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282688119.

The product of its digits is 907200, while the sum is 43.

The square root of 2565376234 is about 50649.5432753347. The cubic root of 2565376234 is about 1368.9377159643.

The spelling of 2565376234 in words is "two billion, five hundred sixty-five million, three hundred seventy-six thousand, two hundred thirty-four".