2565411537 has 16 divisors (see below), whose sum is σ = 3900355200. Its totient is φ = 1485848832.

The previous prime is 2565411517. The next prime is 2565411551. The reversal of 2565411537 is 7351145652.

It is not a de Polignac number, because 2565411537 - 2¹⁰ = 2565410513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 2565411495 and 2565411504.

It is not an unprimeable number, because it can be changed into a prime (2565411517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1934037 + ... + 1935362.

It is an arithmetic number, because the mean of its divisors is an integer number (243772200).

Almost surely, 2^2565411537 is an apocalyptic number.

It is an amenable number.

2565411537 is a deficient number, since it is larger than the sum of its proper divisors (1334943663).

2565411537 is a wasteful number, since it uses less digits than its factorization.

2565411537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869432.

The product of its digits is 126000, while the sum is 39.

The square root of 2565411537 is about 50649.8917767847. The cubic root of 2565411537 is about 1368.9439954053.

The spelling of 2565411537 in words is "two billion, five hundred sixty-five million, four hundred eleven thousand, five hundred thirty-seven".