2504979745 has 16 divisors (see below), whose sum is σ = 3028780368. Its totient is φ = 1988812800.

The previous prime is 2504979721. The next prime is 2504979761. The reversal of 2504979745 is 5479794052.

2504979745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 519475264 + 1985504481 = 22792^2 + 44559^2 .

It is not a de Polignac number, because 2504979745 - 2²⁹ = 1968108833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2504979692 and 2504979701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941457 + ... + 944113.

It is an arithmetic number, because the mean of its divisors is an integer number (189298773).

Almost surely, 2^2504979745 is an apocalyptic number.

It is an amenable number.

2504979745 is a deficient number, since it is larger than the sum of its proper divisors (523800623).

2504979745 is a wasteful number, since it uses less digits than its factorization.

2504979745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The square root of 2504979745 is about 50049.7726768064. The cubic root of 2504979745 is about 1358.1093511356.

The spelling of 2504979745 in words is "two billion, five hundred four million, nine hundred seventy-nine thousand, seven hundred forty-five".