55228602 has 64 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 15172800.

The previous prime is 55228601. The next prime is 55228603. The reversal of 55228602 is 20682255.

It is an interprime number because it is at equal distance from previous prime (55228601) and next prime (55228603).

It is a self number, because there is not a number n which added to its sum of digits gives 55228602.

It is not an unprimeable number, because it can be changed into a prime (55228601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50077 + ... + 51167.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^55228602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55228602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66044160).

55228602 is an abundant number, since it is smaller than the sum of its proper divisors (76859718).

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

55228602 is a wasteful number, since it uses less digits than its factorization.

55228602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 55228602 is about 7431.5948490213. The cubic root of 55228602 is about 380.8214041605.

The spelling of 55228602 in words is "fifty-five million, two hundred twenty-eight thousand, six hundred two".