55227450 has 48 divisors (see below), whose sum is σ = 137553696. Its totient is φ = 14664000.

The previous prime is 55227443. The next prime is 55227457. The reversal of 55227450 is 5472255.

55227450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55227443) and next prime (55227457).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (55227457) 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 23 ways as a sum of consecutive naturals, for example, 41800 + ... + 43100.

It is an arithmetic number, because the mean of its divisors is an integer number (2865702).

Almost surely, 2^55227450 is an apocalyptic number.

55227450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55227450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68776848).

55227450 is an abundant number, since it is smaller than the sum of its proper divisors (82326246).

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

55227450 is a wasteful number, since it uses less digits than its factorization.

55227450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 55227450 is about 7431.5173417008. The cubic root of 55227450 is about 380.8187563217.

The spelling of 55227450 in words is "fifty-five million, two hundred twenty-seven thousand, four hundred fifty".