2565404053 has 8 divisors (see below), whose sum is σ = 2590412000. Its totient is φ = 2540423088.

The previous prime is 2565404011. The next prime is 2565404059. The reversal of 2565404053 is 3504045652.

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 2565404053 - 2²¹ = 2563306901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565404059) 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, 221398 + ... + 232696.

It is an arithmetic number, because the mean of its divisors is an integer number (323801500).

Almost surely, 2^2565404053 is an apocalyptic number.

It is an amenable number.

2565404053 is a deficient number, since it is larger than the sum of its proper divisors (25007947).

2565404053 is a wasteful number, since it uses less digits than its factorization.

2565404053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13491.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 2565404053 is about 50649.8178970073. The cubic root of 2565404053 is about 1368.9426642106.

The spelling of 2565404053 in words is "two billion, five hundred sixty-five million, four hundred four thousand, fifty-three".