55516371 has 4 divisors (see below), whose sum is σ = 74021832. Its totient is φ = 37010912.

The previous prime is 55516361. The next prime is 55516403. The reversal of 55516371 is 17361555.

55516371 is nontrivially palindromic in base 8.

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 55516371 - 2¹⁹ = 54992083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55516361) 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, 9252726 + ... + 9252731.

It is an arithmetic number, because the mean of its divisors is an integer number (18505458).

Almost surely, 2^55516371 is an apocalyptic number.

55516371 is a deficient number, since it is larger than the sum of its proper divisors (18505461).

55516371 is a wasteful number, since it uses less digits than its factorization.

55516371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18505460.

The product of its digits is 15750, while the sum is 33.

The square root of 55516371 is about 7450.9308814403. The cubic root of 55516371 is about 381.4816828470.

The spelling of 55516371 in words is "fifty-five million, five hundred sixteen thousand, three hundred seventy-one".