56549145 has 32 divisors (see below), whose sum is σ = 93405312. Its totient is φ = 29199872.

The previous prime is 56549137. The next prime is 56549161. The reversal of 56549145 is 54194565.

It is a cyclic number.

It is not a de Polignac number, because 56549145 - 2³ = 56549137 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 65557 + ... + 66413.

It is an arithmetic number, because the mean of its divisors is an integer number (2918916).

Almost surely, 2^56549145 is an apocalyptic number.

It is an amenable number.

56549145 is a deficient number, since it is larger than the sum of its proper divisors (36856167).

56549145 is a wasteful number, since it uses less digits than its factorization.

56549145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its digits is 108000, while the sum is 39.

The square root of 56549145 is about 7519.9165553881. The cubic root of 56549145 is about 383.8327382988.

The spelling of 56549145 in words is "fifty-six million, five hundred forty-nine thousand, one hundred forty-five".