55606863 has 32 divisors (see below), whose sum is σ = 84994560. Its totient is φ = 32054400.

The previous prime is 55606853. The next prime is 55606883. The reversal of 55606863 is 36860655.

It is not a de Polignac number, because 55606863 - 2⁹ = 55606351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55606853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74470 + ... + 75212.

It is an arithmetic number, because the mean of its divisors is an integer number (2656080).

Almost surely, 2^55606863 is an apocalyptic number.

55606863 is a deficient number, since it is larger than the sum of its proper divisors (29387697).

55606863 is a wasteful number, since it uses less digits than its factorization.

55606863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 55606863 is about 7457.0009387152. Note that the first 3 decimals coincide. The cubic root of 55606863 is about 381.6888427669.

The spelling of 55606863 in words is "fifty-five million, six hundred six thousand, eight hundred sixty-three".