55445894 has 8 divisors (see below), whose sum is σ = 95050128. Its totient is φ = 23762520.

The previous prime is 55445867. The next prime is 55445953. The reversal of 55445894 is 49854455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55445894² = 6148494322918472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1980197 + ... + 1980224.

It is an arithmetic number, because the mean of its divisors is an integer number (11881266).

Almost surely, 2^55445894 is an apocalyptic number.

55445894 is a deficient number, since it is larger than the sum of its proper divisors (39604234).

55445894 is a wasteful number, since it uses less digits than its factorization.

55445894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960430.

The product of its digits is 576000, while the sum is 44.

The square root of 55445894 is about 7446.1999704547. The cubic root of 55445894 is about 381.3201865228.

The spelling of 55445894 in words is "fifty-five million, four hundred forty-five thousand, eight hundred ninety-four".