2565088749 has 24 divisors (see below), whose sum is σ = 4010680320. Its totient is φ = 1620049896.

The previous prime is 2565088733. The next prime is 2565088759. The reversal of 2565088749 is 9478805652.

2565088749 is a `hidden beast` number, since 2 + 56 + 508 + 87 + 4 + 9 = 666.

2565088749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2565088749 - 2⁴ = 2565088733 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2565088695 and 2565088704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565088759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121837 + ... + 141330.

It is an arithmetic number, because the mean of its divisors is an integer number (167111680).

Almost surely, 2^2565088749 is an apocalyptic number.

It is an amenable number.

2565088749 is a deficient number, since it is larger than the sum of its proper divisors (1445591571).

2565088749 is a wasteful number, since it uses less digits than its factorization.

2565088749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263214 (or 263189 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The square root of 2565088749 is about 50646.7052136662. The cubic root of 2565088749 is about 1368.8865780771.

The spelling of 2565088749 in words is "two billion, five hundred sixty-five million, eighty-eight thousand, seven hundred forty-nine".