55145076 has 144 divisors (see below), whose sum is σ = 164997504. Its totient is φ = 13989888.

The previous prime is 55145071. The next prime is 55145137. The reversal of 55145076 is 67054155.

55145076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55145071) 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 in 47 ways as a sum of consecutive naturals, for example, 755376 + ... + 755448.

It is an arithmetic number, because the mean of its divisors is an integer number (1145816).

Almost surely, 2^55145076 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 55145076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82498752).

55145076 is an abundant number, since it is smaller than the sum of its proper divisors (109852428).

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

55145076 is a wasteful number, since it uses less digits than its factorization.

55145076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55145076 is about 7425.9730675515. The cubic root of 55145076 is about 380.6293265273.

The spelling of 55145076 in words is "fifty-five million, one hundred forty-five thousand, seventy-six".