55727471 has 4 divisors (see below), whose sum is σ = 55776552. Its totient is φ = 55678392.

The previous prime is 55727461. The next prime is 55727489. The reversal of 55727471 is 17472755.

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

It is a cyclic number.

It is not a de Polignac number, because 55727471 - 2⁶ = 55727407 is a prime.

It is a super-3 number, since 3×55727471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55727401) 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, 22796 + ... + 25121.

It is an arithmetic number, because the mean of its divisors is an integer number (13944138).

Almost surely, 2^55727471 is an apocalyptic number.

55727471 is a deficient number, since it is larger than the sum of its proper divisors (49081).

55727471 is a wasteful number, since it uses less digits than its factorization.

55727471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49080.

The product of its digits is 68600, while the sum is 38.

The square root of 55727471 is about 7465.0834556621. The cubic root of 55727471 is about 381.9645970132.

The spelling of 55727471 in words is "fifty-five million, seven hundred twenty-seven thousand, four hundred seventy-one".