55020048 has 160 divisors (see below), whose sum is σ = 162370560. Its totient is φ = 15966720.

The previous prime is 55020023. The next prime is 55020061. The reversal of 55020048 is 84002055.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 901938 + ... + 901998.

It is an arithmetic number, because the mean of its divisors is an integer number (1014816).

Almost surely, 2^55020048 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 55020048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81185280).

55020048 is an abundant number, since it is smaller than the sum of its proper divisors (107350512).

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

55020048 is a wasteful number, since it uses less digits than its factorization.

55020048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 55020048 is about 7417.5499998315. The cubic root of 55020048 is about 380.3414474878.

The spelling of 55020048 in words is "fifty-five million, twenty thousand, forty-eight".