55902563 has 2 divisors, whose sum is σ = 55902564. Its totient is φ = 55902562.

The previous prime is 55902527. The next prime is 55902607. The reversal of 55902563 is 36520955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55902563 - 2¹⁰ = 55901539 is a prime.

It is not a weakly prime, because it can be changed into another prime (55902263) by changing a digit.

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 as a sum of consecutive naturals, namely, 27951281 + 27951282.

It is an arithmetic number, because the mean of its divisors is an integer number (27951282).

Almost surely, 2^55902563 is an apocalyptic number.

55902563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55902563 is an equidigital number, since it uses as much as digits as its factorization.

55902563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55902563 is about 7476.8016557884. The cubic root of 55902563 is about 382.3642145505.

It can be divided in two parts, 55902 and 563, that added together give a palindrome (56465).

The spelling of 55902563 in words is "fifty-five million, nine hundred two thousand, five hundred sixty-three".