2545012791 has 20 divisors (see below), whose sum is σ = 3820938000. Its totient is φ = 1688138496.

The previous prime is 2545012783. The next prime is 2545012793. The reversal of 2545012791 is 1972105452.

2545012791 is a `hidden beast` number, since 2 + 545 + 0 + 1 + 27 + 91 = 666.

It is not a de Polignac number, because 2545012791 - 2³ = 2545012783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545012793) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 62826 + ... + 95063.

It is an arithmetic number, because the mean of its divisors is an integer number (191046900).

Almost surely, 2^2545012791 is an apocalyptic number.

2545012791 is a deficient number, since it is larger than the sum of its proper divisors (1275925209).

2545012791 is a wasteful number, since it uses less digits than its factorization.

2545012791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158100 (or 158091 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2545012791 is about 50448.1197964800. The cubic root of 2545012791 is about 1365.3059717430.

The spelling of 2545012791 in words is "two billion, five hundred forty-five million, twelve thousand, seven hundred ninety-one".