55427903 has 8 divisors (see below), whose sum is σ = 58674000. Its totient is φ = 52270848.

The previous prime is 55427821. The next prime is 55427909. The reversal of 55427903 is 30972455.

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 55427903 - 2¹⁰ = 55426879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55427909) 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, 20978 + ... + 23471.

It is an arithmetic number, because the mean of its divisors is an integer number (7334250).

Almost surely, 2^55427903 is an apocalyptic number.

55427903 is a deficient number, since it is larger than the sum of its proper divisors (3246097).

55427903 is a wasteful number, since it uses less digits than its factorization.

55427903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44521.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 55427903 is about 7444.9918065771. The cubic root of 55427903 is about 381.2789386616.

The spelling of 55427903 in words is "fifty-five million, four hundred twenty-seven thousand, nine hundred three".