2565264450 has 48 divisors (see below), whose sum is σ = 7270695360. Its totient is φ = 586345920.

The previous prime is 2565264421. The next prime is 2565264467. The reversal of 2565264450 is 544625652.

It is a junction number, because it is equal to n+sod(n) for n = 2565264399 and 2565264408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1220505 + ... + 1222604.

It is an arithmetic number, because the mean of its divisors is an integer number (151472820).

Almost surely, 2^2565264450 is an apocalyptic number.

2565264450 is an abundant number, since it is smaller than the sum of its proper divisors (4705430910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565264450 is a wasteful number, since it uses less digits than its factorization.

2565264450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443131 (or 2443126 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The square root of 2565264450 is about 50648.4397587922. The cubic root of 2565264450 is about 1368.9178322588.

The spelling of 2565264450 in words is "two billion, five hundred sixty-five million, two hundred sixty-four thousand, four hundred fifty".