2565002438 has 8 divisors (see below), whose sum is σ = 3848679120. Its totient is φ = 1282109400.

The previous prime is 2565002437. The next prime is 2565002471. The reversal of 2565002438 is 8342005652.

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

It is a junction number, because it is equal to n+sod(n) for n = 2565002398 and 2565002407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565002437) 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, 187658 + ... + 200861.

It is an arithmetic number, because the mean of its divisors is an integer number (481084890).

Almost surely, 2^2565002438 is an apocalyptic number.

2565002438 is a deficient number, since it is larger than the sum of its proper divisors (1283676682).

2565002438 is a wasteful number, since it uses less digits than its factorization.

2565002438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391822.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2565002438 is about 50645.8531175061. The cubic root of 2565002438 is about 1368.8712243141.

The spelling of 2565002438 in words is "two billion, five hundred sixty-five million, two thousand, four hundred thirty-eight".