55394017 has 4 divisors (see below), whose sum is σ = 63307456. Its totient is φ = 47480580.

The previous prime is 55393999. The next prime is 55394021. The reversal of 55394017 is 71049355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55394017 - 2⁷ = 55393889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55394057) 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, 3956709 + ... + 3956722.

It is an arithmetic number, because the mean of its divisors is an integer number (15826864).

Almost surely, 2^55394017 is an apocalyptic number.

It is an amenable number.

55394017 is a deficient number, since it is larger than the sum of its proper divisors (7913439).

55394017 is an equidigital number, since it uses as much as digits as its factorization.

55394017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913438.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55394017 is about 7442.7157006028. The cubic root of 55394017 is about 381.2012241820.

The spelling of 55394017 in words is "fifty-five million, three hundred ninety-four thousand, seventeen".