55745773 has 8 divisors (see below), whose sum is σ = 57750840. Its totient is φ = 53771520.

The previous prime is 55745749. The next prime is 55745779. The reversal of 55745773 is 37754755.

It can be written as a sum of positive squares in 4 ways, for example, as 5008644 + 50737129 = 2238^2 + 7123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55745773 - 2⁵ = 55745741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55745779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3990 + ... + 11287.

It is an arithmetic number, because the mean of its divisors is an integer number (7218855).

Almost surely, 2^55745773 is an apocalyptic number.

It is an amenable number.

55745773 is a deficient number, since it is larger than the sum of its proper divisors (2005067).

55745773 is a wasteful number, since it uses less digits than its factorization.

55745773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15407.

The product of its digits is 514500, while the sum is 43.

The square root of 55745773 is about 7466.3091953120. The cubic root of 55745773 is about 382.0064073375.

The spelling of 55745773 in words is "fifty-five million, seven hundred forty-five thousand, seven hundred seventy-three".