55371371 has 4 divisors (see below), whose sum is σ = 60405144. Its totient is φ = 50337600.

The previous prime is 55371343. The next prime is 55371389. The reversal of 55371371 is 17317355.

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 55371371 - 2¹⁰ = 55370347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55371391) 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, 2516870 + ... + 2516891.

It is an arithmetic number, because the mean of its divisors is an integer number (15101286).

Almost surely, 2^55371371 is an apocalyptic number.

55371371 is a deficient number, since it is larger than the sum of its proper divisors (5033773).

55371371 is a wasteful number, since it uses less digits than its factorization.

55371371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033772.

The product of its digits is 11025, while the sum is 32.

The square root of 55371371 is about 7441.1941917948. The cubic root of 55371371 is about 381.1492699575.

The spelling of 55371371 in words is "fifty-five million, three hundred seventy-one thousand, three hundred seventy-one".