55945801 has 4 divisors (see below), whose sum is σ = 55962900. Its totient is φ = 55928704.

The previous prime is 55945783. The next prime is 55945807. The reversal of 55945801 is 10854955.

55945801 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 can be written as a sum of positive squares in 2 ways, for example, as 5180176 + 50765625 = 2276^2 + 7125^2 .

It is a cyclic number.

It is not a de Polignac number, because 55945801 - 2¹⁷ = 55814729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55945807) by changing a digit.

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, 1936 + ... + 10753.

It is an arithmetic number, because the mean of its divisors is an integer number (13990725).

Almost surely, 2^55945801 is an apocalyptic number.

It is an amenable number.

55945801 is a deficient number, since it is larger than the sum of its proper divisors (17099).

55945801 is a wasteful number, since it uses less digits than its factorization.

55945801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 55945801 is about 7479.6925738963. The cubic root of 55945801 is about 382.4627693838.

It can be divided in two parts, 559 and 45801, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 55945801 in words is "fifty-five million, nine hundred forty-five thousand, eight hundred one".