55183919 has 8 divisors (see below), whose sum is σ = 63117600. Its totient is φ = 47262816.

The previous prime is 55183907. The next prime is 55183943. The reversal of 55183919 is 91938155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55183919 - 2¹² = 55179823 is a prime.

It is a super-2 number, since 2×55183919² = 6090529832397122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55189919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9857 + ... + 14405.

It is an arithmetic number, because the mean of its divisors is an integer number (7889700).

Almost surely, 2^55183919 is an apocalyptic number.

55183919 is a deficient number, since it is larger than the sum of its proper divisors (7933681).

55183919 is a wasteful number, since it uses less digits than its factorization.

55183919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289.

The product of its digits is 48600, while the sum is 41.

The square root of 55183919 is about 7428.5879546519. The cubic root of 55183919 is about 380.7186745767.

The spelling of 55183919 in words is "fifty-five million, one hundred eighty-three thousand, nine hundred nineteen".