55971223045 has 16 divisors (see below), whose sum is σ = 71359127280. Its totient is φ = 41999186944.

The previous prime is 55971223027. The next prime is 55971223067. The reversal of 55971223045 is 54032217955.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5133149316 + 50838073729 = 71646^2 + 225473^2 .

It is a cyclic number.

It is not a de Polignac number, because 55971223045 - 2⁷ = 55971222917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55971222992 and 55971223010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098790 + ... + 1148599.

It is an arithmetic number, because the mean of its divisors is an integer number (4459945455).

Almost surely, 2^55971223045 is an apocalyptic number.

It is an amenable number.

55971223045 is a deficient number, since it is larger than the sum of its proper divisors (15387904235).

55971223045 is a wasteful number, since it uses less digits than its factorization.

55971223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247704.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 55971223045 in words is "fifty-five billion, nine hundred seventy-one million, two hundred twenty-three thousand, forty-five".