55227421493 has 8 divisors (see below), whose sum is σ = 55400518680. Its totient is φ = 55054379520.

The previous prime is 55227421471. The next prime is 55227421573. The reversal of 55227421493 is 39412472255.

It can be written as a sum of positive squares in 4 ways, for example, as 6581590129 + 48645831364 = 81127^2 + 220558^2 .

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 55227421493 - 2¹² = 55227417397 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 (55227421423) 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, 3003953 + ... + 3022281.

It is an arithmetic number, because the mean of its divisors is an integer number (6925064835).

Almost surely, 2^55227421493 is an apocalyptic number.

It is an amenable number.

55227421493 is a deficient number, since it is larger than the sum of its proper divisors (173097187).

55227421493 is a wasteful number, since it uses less digits than its factorization.

55227421493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607.

The product of its digits is 604800, while the sum is 44.

The spelling of 55227421493 in words is "fifty-five billion, two hundred twenty-seven million, four hundred twenty-one thousand, four hundred ninety-three".