55271051 has 4 divisors (see below), whose sum is σ = 60295704. Its totient is φ = 50246400.

The previous prime is 55270991. The next prime is 55271077. The reversal of 55271051 is 15017255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55271051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55271051.

It is not an unprimeable number, because it can be changed into a prime (55270051) 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, 2512310 + ... + 2512331.

It is an arithmetic number, because the mean of its divisors is an integer number (15073926).

Almost surely, 2^55271051 is an apocalyptic number.

55271051 is a deficient number, since it is larger than the sum of its proper divisors (5024653).

55271051 is a wasteful number, since it uses less digits than its factorization.

55271051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024652.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 55271051 is about 7434.4502823006. The cubic root of 55271051 is about 380.9189462995.

The spelling of 55271051 in words is "fifty-five million, two hundred seventy-one thousand, fifty-one".