55602288 has 160 divisors (see below), whose sum is σ = 185464320. Its totient is φ = 15816384.

The previous prime is 55602271. The next prime is 55602289. The reversal of 55602288 is 88220655.

55602288 is a `hidden beast` number, since 556 + 0 + 22 + 88 = 666.

It is a super-2 number, since 2×55602288² = 6183228861669888, which contains 22 as substring.

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

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55602289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244831 + ... + 245057.

It is an arithmetic number, because the mean of its divisors is an integer number (1159152).

Almost surely, 2^55602288 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 55602288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92732160).

55602288 is an abundant number, since it is smaller than the sum of its proper divisors (129862032).

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

55602288 is an equidigital number, since it uses as much as digits as its factorization.

55602288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 55602288 is about 7456.6941736939. The cubic root of 55602288 is about 381.6783747884.

The spelling of 55602288 in words is "fifty-five million, six hundred two thousand, two hundred eighty-eight".