2509274745 has 12 divisors (see below), whose sum is σ = 4349409636. Its totient is φ = 1338279840.

The previous prime is 2509274701. The next prime is 2509274777. The reversal of 2509274745 is 5474729052.

2509274745 is a `hidden beast` number, since 2 + 509 + 2 + 74 + 74 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 923005161 + 1586269584 = 30381^2 + 39828^2 .

It is not a de Polignac number, because 2509274745 - 2⁸ = 2509274489 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 55761661 = 2509274745 / (2 + 5 + 0 + 9 + 2 + 7 + 4 + 7 + 4 + 5).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2509274745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27880786 + ... + 27880875.

It is an arithmetic number, because the mean of its divisors is an integer number (362450803).

Almost surely, 2^2509274745 is an apocalyptic number.

It is an amenable number.

2509274745 is a deficient number, since it is larger than the sum of its proper divisors (1840134891).

2509274745 is a wasteful number, since it uses less digits than its factorization.

2509274745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55761672 (or 55761669 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 2509274745 is about 50092.6615883005. The cubic root of 2509274745 is about 1358.8851057869.

The spelling of 2509274745 in words is "two billion, five hundred nine million, two hundred seventy-four thousand, seven hundred forty-five".