55113576 has 64 divisors (see below), whose sum is σ = 158215680. Its totient is φ = 15672000.

The previous prime is 55113571. The next prime is 55113581. The reversal of 55113576 is 67531155.

It is an interprime number because it is at equal distance from previous prime (55113571) and next prime (55113581).

It is not an unprimeable number, because it can be changed into a prime (55113571) 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, 41515 + ... + 42821.

It is an arithmetic number, because the mean of its divisors is an integer number (2472120).

Almost surely, 2^55113576 is an apocalyptic number.

55113576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55113576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79107840).

55113576 is an abundant number, since it is smaller than the sum of its proper divisors (103102104).

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

55113576 is a wasteful number, since it uses less digits than its factorization.

55113576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574 (or 1570 counting only the distinct ones).

The product of its digits is 15750, while the sum is 33.

The square root of 55113576 is about 7423.8518304180. The cubic root of 55113576 is about 380.5568382937.

The spelling of 55113576 in words is "fifty-five million, one hundred thirteen thousand, five hundred seventy-six".