55371 has 4 divisors (see below), whose sum is σ = 73832. Its totient is φ = 36912.

The previous prime is 55351. The next prime is 55373. The reversal of 55371 is 17355.

It is a happy number.

55371 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55371 - 2⁵ = 55339 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55373) 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, 9226 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (18458).

2⁵⁵³⁷¹ is an apocalyptic number.

55371 is a deficient number, since it is larger than the sum of its proper divisors (18461).

55371 is a wasteful number, since it uses less digits than its factorization.

55371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18460.

The product of its digits is 525, while the sum is 21.

The square root of 55371 is about 235.3104332579. The cubic root of 55371 is about 38.1148418695.

The spelling of 55371 in words is "fifty-five thousand, three hundred seventy-one".