55542119 has 4 divisors (see below), whose sum is σ = 55830096. Its totient is φ = 55254144.

The previous prime is 55542083. The next prime is 55542121. The reversal of 55542119 is 91124555.

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 55542119 - 2¹⁶ = 55476583 is a prime.

It is a super-2 number, since 2×55542119² = 6169853966020322, 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 (55542139) 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, 143699 + ... + 144084.

It is an arithmetic number, because the mean of its divisors is an integer number (13957524).

Almost surely, 2^55542119 is an apocalyptic number.

55542119 is a deficient number, since it is larger than the sum of its proper divisors (287977).

55542119 is a wasteful number, since it uses less digits than its factorization.

55542119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287976.

The product of its digits is 9000, while the sum is 32.

The square root of 55542119 is about 7452.6585189448. The cubic root of 55542119 is about 381.5406496711.

The spelling of 55542119 in words is "fifty-five million, five hundred forty-two thousand, one hundred nineteen".