2565611455 has 32 divisors (see below), whose sum is σ = 3423928320. Its totient is φ = 1829963520.

The previous prime is 2565611443. The next prime is 2565611473. The reversal of 2565611455 is 5541165652.

It is not a de Polignac number, because 2565611455 - 2¹¹ = 2565609407 is a prime.

It is a super-3 number, since 3×2565611455³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 619602 + ... + 623728.

It is an arithmetic number, because the mean of its divisors is an integer number (106997760).

Almost surely, 2^2565611455 is an apocalyptic number.

2565611455 is a deficient number, since it is larger than the sum of its proper divisors (858316865).

2565611455 is a wasteful number, since it uses less digits than its factorization.

2565611455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359.

The product of its digits is 180000, while the sum is 40.

The square root of 2565611455 is about 50651.8652667402. The cubic root of 2565611455 is about 1368.9795542793.

The spelling of 2565611455 in words is "two billion, five hundred sixty-five million, six hundred eleven thousand, four hundred fifty-five".