55420063 has 2 divisors, whose sum is σ = 55420064. Its totient is φ = 55420062.

The previous prime is 55420049. The next prime is 55420109. The reversal of 55420063 is 36002455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55420063 - 2¹⁷ = 55288991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55421063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27710031 + 27710032.

It is an arithmetic number, because the mean of its divisors is an integer number (27710032).

Almost surely, 2^55420063 is an apocalyptic number.

55420063 is a deficient number, since it is larger than the sum of its proper divisors (1).

55420063 is an equidigital number, since it uses as much as digits as its factorization.

55420063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55420063 is about 7444.4652595066. The cubic root of 55420063 is about 381.2609611468.

The spelling of 55420063 in words is "fifty-five million, four hundred twenty thousand, sixty-three".