55390063 has 8 divisors (see below), whose sum is σ = 60013008. Its totient is φ = 50918784.

The previous prime is 55390061. The next prime is 55390091. The reversal of 55390063 is 36009355.

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 55390063 - 2¹ = 55390061 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 (55390061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37156 + ... + 38617.

It is an arithmetic number, because the mean of its divisors is an integer number (7501626).

Almost surely, 2^55390063 is an apocalyptic number.

55390063 is a deficient number, since it is larger than the sum of its proper divisors (4622945).

55390063 is a wasteful number, since it uses less digits than its factorization.

55390063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75833.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 55390063 is about 7442.4500670142. The cubic root of 55390063 is about 381.1921539756.

The spelling of 55390063 in words is "fifty-five million, three hundred ninety thousand, sixty-three".