55351471 has 4 divisors (see below), whose sum is σ = 63258832. Its totient is φ = 47444112.

The previous prime is 55351463. The next prime is 55351481. The reversal of 55351471 is 17415355.

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 55351471 - 2³ = 55351463 is a prime.

It is a super-3 number, since 3×55351471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55351411) 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, 3953670 + ... + 3953683.

It is an arithmetic number, because the mean of its divisors is an integer number (15814708).

Almost surely, 2^55351471 is an apocalyptic number.

55351471 is a deficient number, since it is larger than the sum of its proper divisors (7907361).

55351471 is an equidigital number, since it uses as much as digits as its factorization.

55351471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907360.

The product of its digits is 10500, while the sum is 31.

The square root of 55351471 is about 7439.8569206672. The cubic root of 55351471 is about 381.1036038840.

The spelling of 55351471 in words is "fifty-five million, three hundred fifty-one thousand, four hundred seventy-one".