55273537 has 4 divisors (see below), whose sum is σ = 60298416. Its totient is φ = 50248660.

The previous prime is 55273529. The next prime is 55273583. The reversal of 55273537 is 73537255.

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 not a de Polignac number, because 55273537 - 2³ = 55273529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55273496 and 55273505.

It is not an unprimeable number, because it can be changed into a prime (55273037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512423 + ... + 2512444.

It is an arithmetic number, because the mean of its divisors is an integer number (15074604).

Almost surely, 2^55273537 is an apocalyptic number.

It is an amenable number.

55273537 is a deficient number, since it is larger than the sum of its proper divisors (5024879).

55273537 is a wasteful number, since it uses less digits than its factorization.

55273537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024878.

The product of its digits is 110250, while the sum is 37.

The square root of 55273537 is about 7434.6174750286. The cubic root of 55273537 is about 380.9246572476.

The spelling of 55273537 in words is "fifty-five million, two hundred seventy-three thousand, five hundred thirty-seven".