2545745256 has 24 divisors (see below), whose sum is σ = 6894726930. Its totient is φ = 848581728.

The previous prime is 2545745243. The next prime is 2545745273. The reversal of 2545745256 is 6525475452.

2545745256 is a `hidden beast` number, since 2 + 54 + 5 + 74 + 525 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2537136900 + 8608356 = 50370^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17678715 + ... + 17678858.

Almost surely, 2^2545745256 is an apocalyptic number.

It is an amenable number.

2545745256 is an abundant number, since it is smaller than the sum of its proper divisors (4348981674).

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

2545745256 is a wasteful number, since it uses less digits than its factorization.

2545745256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35357585 (or 35357578 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 45.

The square root of 2545745256 is about 50455.3788609302. The cubic root of 2545745256 is about 1365.4369393776.

The spelling of 2545745256 in words is "two billion, five hundred forty-five million, seven hundred forty-five thousand, two hundred fifty-six".