55123104 has 96 divisors (see below), whose sum is σ = 155796480. Its totient is φ = 17010432.

The previous prime is 55123099. The next prime is 55123109. The reversal of 55123104 is 40132155.

It is an interprime number because it is at equal distance from previous prime (55123099) and next prime (55123109).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (55123109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85407 + ... + 86049.

It is an arithmetic number, because the mean of its divisors is an integer number (1622880).

Almost surely, 2^55123104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55123104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77898240).

55123104 is an abundant number, since it is smaller than the sum of its proper divisors (100673376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55123104 is a wasteful number, since it uses less digits than its factorization.

55123104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55123104 is about 7424.4935180792. The cubic root of 55123104 is about 380.5787671715.

Adding to 55123104 its reverse (40132155), we get a palindrome (95255259).

The spelling of 55123104 in words is "fifty-five million, one hundred twenty-three thousand, one hundred four".