55219248 has 120 divisors (see below), whose sum is σ = 182800800. Its totient is φ = 15224832.

The previous prime is 55219237. The next prime is 55219259. The reversal of 55219248 is 84291255.

55219248 is a `hidden beast` number, since 5 + 521 + 92 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (55219237) and next prime (55219259).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28288 + ... + 30176.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^55219248 is an apocalyptic number.

55219248 is a gapful number since it is divisible by the number (58) 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 55219248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91400400).

55219248 is an abundant number, since it is smaller than the sum of its proper divisors (127581552).

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

55219248 is a wasteful number, since it uses less digits than its factorization.

55219248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1930 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 55219248 is about 7430.9654823583. The cubic root of 55219248 is about 380.7999031965.

The spelling of 55219248 in words is "fifty-five million, two hundred nineteen thousand, two hundred forty-eight".