55842019 has 8 divisors (see below), whose sum is σ = 57620160. Its totient is φ = 54090816.

The previous prime is 55841983. The next prime is 55842029. The reversal of 55842019 is 91024855.

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 55842019 - 2⁹ = 55841507 is a prime.

It is a super-2 number, since 2×55842019² = 6236662171992722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55842029) 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, 2482 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (7202520).

Almost surely, 2^55842019 is an apocalyptic number.

55842019 is a deficient number, since it is larger than the sum of its proper divisors (1778141).

55842019 is a wasteful number, since it uses less digits than its factorization.

55842019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 55842019 is about 7472.7517689269. The cubic root of 55842019 is about 382.2261277312.

The spelling of 55842019 in words is "fifty-five million, eight hundred forty-two thousand, nineteen".