2565141937 has 8 divisors (see below), whose sum is σ = 2572393032. Its totient is φ = 2557900800.

The previous prime is 2565141919. The next prime is 2565141977. The reversal of 2565141937 is 7391415652.

It can be written as a sum of positive squares in 4 ways, for example, as 143616256 + 2421525681 = 11984^2 + 49209^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2565141937 - 2³¹ = 417658289 is a prime.

It is a super-2 number, since 2×2565141937² = 13159906313912223938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2565141893 and 2565141902.

It is not an unprimeable number, because it can be changed into a prime (2565141977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049637 + ... + 1052077.

It is an arithmetic number, because the mean of its divisors is an integer number (321549129).

Almost surely, 2^2565141937 is an apocalyptic number.

It is an amenable number.

2565141937 is a deficient number, since it is larger than the sum of its proper divisors (7251095).

2565141937 is a wasteful number, since it uses less digits than its factorization.

2565141937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its digits is 226800, while the sum is 43.

The square root of 2565141937 is about 50647.2302993954. The cubic root of 2565141937 is about 1368.8960394569.

The spelling of 2565141937 in words is "two billion, five hundred sixty-five million, one hundred forty-one thousand, nine hundred thirty-seven".