55273793 has 6 divisors (see below), whose sum is σ = 58336434. Its totient is φ = 52364304.

The previous prime is 55273787. The next prime is 55273811. The reversal of 55273793 is 39737255.

It can be written as a sum of positive squares in only one way, i.e., 48888064 + 6385729 = 6992^2 + 2527^2 .

It is not a de Polignac number, because 55273793 - 2¹⁴ = 55257409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55273793.

It is not an unprimeable number, because it can be changed into a prime (55273723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76196 + ... + 76917.

It is an arithmetic number, because the mean of its divisors is an integer number (9722739).

Almost surely, 2^55273793 is an apocalyptic number.

It is an amenable number.

55273793 is a deficient number, since it is larger than the sum of its proper divisors (3062641).

55273793 is a wasteful number, since it uses less digits than its factorization.

55273793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153151 (or 153132 counting only the distinct ones).

The product of its digits is 198450, while the sum is 41.

The square root of 55273793 is about 7434.6346917653. The cubic root of 55273793 is about 380.9252453323.

The spelling of 55273793 in words is "fifty-five million, two hundred seventy-three thousand, seven hundred ninety-three".