55045227773 has 4 divisors (see below), whose sum is σ = 56216402880. Its totient is φ = 53874052668.

The previous prime is 55045227739. The next prime is 55045227859. The reversal of 55045227773 is 37772254055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55045227773 - 2¹² = 55045223677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1171175059 = 55045227773 / (5 + 5 + 0 + 4 + 5 + 2 + 2 + 7 + 7 + 7 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55045227703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585587483 + ... + 585587576.

It is an arithmetic number, because the mean of its divisors is an integer number (14054100720).

Almost surely, 2^55045227773 is an apocalyptic number.

It is an amenable number.

55045227773 is a deficient number, since it is larger than the sum of its proper divisors (1171175107).

55045227773 is a wasteful number, since it uses less digits than its factorization.

55045227773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171175106.

The product of its (nonzero) digits is 2058000, while the sum is 47.

The spelling of 55045227773 in words is "fifty-five billion, forty-five million, two hundred twenty-seven thousand, seven hundred seventy-three".