55101860 has 72 divisors (see below), whose sum is σ = 130709376. Its totient is φ = 19342080.

The previous prime is 55101853. The next prime is 55101869. The reversal of 55101860 is 6810155.

It is not an unprimeable number, because it can be changed into a prime (55101869) 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 23 ways as a sum of consecutive naturals, for example, 754784 + ... + 754856.

It is an arithmetic number, because the mean of its divisors is an integer number (1815408).

Almost surely, 2^55101860 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 55101860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65354688).

55101860 is an abundant number, since it is smaller than the sum of its proper divisors (75607516).

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

55101860 is a wasteful number, since it uses less digits than its factorization.

55101860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 55101860 is about 7423.0627102295. The cubic root of 55101860 is about 380.5298702263.

The spelling of 55101860 in words is "fifty-five million, one hundred one thousand, eight hundred sixty".