55312671 has 4 divisors (see below), whose sum is σ = 73750232. Its totient is φ = 36875112.

The previous prime is 55312651. The next prime is 55312681. The reversal of 55312671 is 17621355.

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

It is a de Polignac number, because none of the positive numbers 2^k-55312671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55312651) 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, 9218776 + ... + 9218781.

It is an arithmetic number, because the mean of its divisors is an integer number (18437558).

Almost surely, 2^55312671 is an apocalyptic number.

55312671 is a deficient number, since it is larger than the sum of its proper divisors (18437561).

55312671 is a wasteful number, since it uses less digits than its factorization.

55312671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18437560.

The product of its digits is 6300, while the sum is 30.

The square root of 55312671 is about 7437.2488865171. The cubic root of 55312671 is about 381.0145350301.

The spelling of 55312671 in words is "fifty-five million, three hundred twelve thousand, six hundred seventy-one".