55093919 has 4 divisors (see below), whose sum is σ = 55997160. Its totient is φ = 54190680.

The previous prime is 55093897. The next prime is 55093921. The reversal of 55093919 is 91939055.

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 55093919 - 2¹⁶ = 55028383 is a prime.

It is a super-2 number, since 2×55093919² = 6070679821557122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55093949) 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, 451529 + ... + 451650.

It is an arithmetic number, because the mean of its divisors is an integer number (13999290).

Almost surely, 2^55093919 is an apocalyptic number.

55093919 is a deficient number, since it is larger than the sum of its proper divisors (903241).

55093919 is an equidigital number, since it uses as much as digits as its factorization.

55093919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903240.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 55093919 is about 7422.5278039223. The cubic root of 55093919 is about 380.5115893378.

The spelling of 55093919 in words is "fifty-five million, ninety-three thousand, nine hundred nineteen".