55481012 has 6 divisors (see below), whose sum is σ = 97091778. Its totient is φ = 27740504.

The previous prime is 55481011. The next prime is 55481021. The reversal of 55481012 is 21018455.

55481012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 2540836 = 7276^2 + 1594^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55481011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935123 + ... + 6935130.

It is an arithmetic number, because the mean of its divisors is an integer number (16181963).

Almost surely, 2^55481012 is an apocalyptic number.

It is an amenable number.

55481012 is a deficient number, since it is larger than the sum of its proper divisors (41610766).

55481012 is a wasteful number, since it uses less digits than its factorization.

55481012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870257 (or 13870255 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 55481012 is about 7448.5577127388. The cubic root of 55481012 is about 381.4006756574.

Adding to 55481012 its reverse (21018455), we get a palindrome (76499467).

The spelling of 55481012 in words is "fifty-five million, four hundred eighty-one thousand, twelve".