55471667 has 4 divisors (see below), whose sum is σ = 56173920. Its totient is φ = 54769416.

The previous prime is 55471649. The next prime is 55471687. The reversal of 55471667 is 76617455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76617455 = 5 ⋅15323491.

It is a cyclic number.

It is not a de Polignac number, because 55471667 - 2⁸ = 55471411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55471627) 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, 351008 + ... + 351165.

It is an arithmetic number, because the mean of its divisors is an integer number (14043480).

Almost surely, 2^55471667 is an apocalyptic number.

55471667 is a deficient number, since it is larger than the sum of its proper divisors (702253).

55471667 is an equidigital number, since it uses as much as digits as its factorization.

55471667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702252.

The product of its digits is 176400, while the sum is 41.

The square root of 55471667 is about 7447.9303836704. The cubic root of 55471667 is about 381.3792605864.

The spelling of 55471667 in words is "fifty-five million, four hundred seventy-one thousand, six hundred sixty-seven".