4555551420 has 144 divisors (see below), whose sum is σ = 16337280960. Its totient is φ = 1005355008.

The previous prime is 4555551409. The next prime is 4555551437. The reversal of 4555551420 is 241555554.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25797 + ... + 98876.

It is an arithmetic number, because the mean of its divisors is an integer number (113453340).

Almost surely, 2^4555551420 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 4555551420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8168640480).

4555551420 is an abundant number, since it is smaller than the sum of its proper divisors (11781729540).

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

4555551420 is a wasteful number, since it uses less digits than its factorization.

4555551420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124724 (or 124719 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The square root of 4555551420 is about 67494.8251349687. The cubic root of 4555551420 is about 1657.7294427909.

The spelling of 4555551420 in words is "four billion, five hundred fifty-five million, five hundred fifty-one thousand, four hundred twenty".