55031104 has 14 divisors (see below), whose sum is σ = 109202474. Its totient is φ = 27515520.

The previous prime is 55031101. The next prime is 55031147. The reversal of 55031104 is 40113055.

It can be written as a sum of positive squares in only one way, i.e., 30824704 + 24206400 = 5552^2 + 4920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55031101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429867 + ... + 429994.

Almost surely, 2^55031104 is an apocalyptic number.

It is an amenable number.

55031104 is a deficient number, since it is larger than the sum of its proper divisors (54171370).

55031104 is an equidigital number, since it uses as much as digits as its factorization.

55031104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859873 (or 859863 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55031104 is about 7418.2952219496. The cubic root of 55031104 is about 380.3669216774.

Adding to 55031104 its reverse (40113055), we get a palindrome (95144159).

The spelling of 55031104 in words is "fifty-five million, thirty-one thousand, one hundred four".