55009827973 has 4 divisors (see below), whose sum is σ = 57401559648. Its totient is φ = 52618096300.

The previous prime is 55009827947. The next prime is 55009827979. The reversal of 55009827973 is 37972890055.

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 55009827973 - 2²¹ = 55007730821 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 (55009827979) 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, 1195865803 + ... + 1195865848.

It is an arithmetic number, because the mean of its divisors is an integer number (14350389912).

Almost surely, 2^55009827973 is an apocalyptic number.

It is an amenable number.

55009827973 is a deficient number, since it is larger than the sum of its proper divisors (2391731675).

55009827973 is a wasteful number, since it uses less digits than its factorization.

55009827973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391731674.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 55009827973 in words is "fifty-five billion, nine million, eight hundred twenty-seven thousand, nine hundred seventy-three".