55681030 has 16 divisors (see below), whose sum is σ = 100782864. Its totient is φ = 22148640.

The previous prime is 55681019. The next prime is 55681033. The reversal of 55681030 is 3018655.

It is a self number, because there is not a number n which added to its sum of digits gives 55681030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55681033) 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, 13572 + ... + 17191.

It is an arithmetic number, because the mean of its divisors is an integer number (6298929).

Almost surely, 2^55681030 is an apocalyptic number.

55681030 is a deficient number, since it is larger than the sum of its proper divisors (45101834).

55681030 is a wasteful number, since it uses less digits than its factorization.

55681030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30951.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55681030 is about 7461.9722593963. The cubic root of 55681030 is about 381.8584629563.

Adding to 55681030 its reverse (3018655), we get a palindrome (58699685).

The spelling of 55681030 in words is "fifty-five million, six hundred eighty-one thousand, thirty".