55847019 has 4 divisors (see below), whose sum is σ = 74462696. Its totient is φ = 37231344.

The previous prime is 55847017. The next prime is 55847021. The reversal of 55847019 is 91074855.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55847017) and next prime (55847021).

It is not a de Polignac number, because 55847019 - 2¹ = 55847017 is a prime.

It is a super-2 number, since 2×55847019² = 6237779062372722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55847017) 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, 9307834 + ... + 9307839.

It is an arithmetic number, because the mean of its divisors is an integer number (18615674).

Almost surely, 2^55847019 is an apocalyptic number.

55847019 is a deficient number, since it is larger than the sum of its proper divisors (18615677).

55847019 is a wasteful number, since it uses less digits than its factorization.

55847019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18615676.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 55847019 is about 7473.0863102202. The cubic root of 55847019 is about 382.2375353513.

The spelling of 55847019 in words is "fifty-five million, eight hundred forty-seven thousand, nineteen".