56001955 has 4 divisors (see below), whose sum is σ = 67202352. Its totient is φ = 44801560.

The previous prime is 56001937. The next prime is 56001971. The reversal of 56001955 is 55910065.

It is a happy number.

56001955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56001955 - 2⁵ = 56001923 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 5600191 + ... + 5600200.

It is an arithmetic number, because the mean of its divisors is an integer number (16800588).

Almost surely, 2^56001955 is an apocalyptic number.

56001955 is a deficient number, since it is larger than the sum of its proper divisors (11200397).

56001955 is a wasteful number, since it uses less digits than its factorization.

56001955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11200396.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 56001955 is about 7483.4453963398. The cubic root of 56001955 is about 382.5906886223.

The spelling of 56001955 in words is "fifty-six million, one thousand, nine hundred fifty-five".