45725778 has 24 divisors (see below), whose sum is σ = 113226048. Its totient is φ = 13064472.

The previous prime is 45725759. The next prime is 45725809. The reversal of 45725778 is 87752754.

45725778 is a `hidden beast` number, since 4 + 5 + 72 + 577 + 8 = 666.

45725778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181326 + ... + 181577.

It is an arithmetic number, because the mean of its divisors is an integer number (4717752).

Almost surely, 2^45725778 is an apocalyptic number.

45725778 is an abundant number, since it is smaller than the sum of its proper divisors (67500270).

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

45725778 is a wasteful number, since it uses less digits than its factorization.

45725778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362918 (or 362915 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 45725778 is about 6762.0838504118. The cubic root of 45725778 is about 357.5913744297.

The spelling of 45725778 in words is "forty-five million, seven hundred twenty-five thousand, seven hundred seventy-eight".