4551120252 has 144 divisors (see below), whose sum is σ = 13948526592. Its totient is φ = 1221419520.

The previous prime is 4551120241. The next prime is 4551120281. The reversal of 4551120252 is 2520211554.

4551120252 is a `hidden beast` number, since 455 + 1 + 1 + 202 + 5 + 2 = 666.

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, 3696477 + ... + 3697707.

It is an arithmetic number, because the mean of its divisors is an integer number (96864768).

Almost surely, 2^4551120252 is an apocalyptic number.

4551120252 is a gapful number since it is divisible by the number (42) 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 4551120252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6974263296).

4551120252 is an abundant number, since it is smaller than the sum of its proper divisors (9397406340).

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

4551120252 is a wasteful number, since it uses less digits than its factorization.

4551120252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 4551120252 is about 67461.9911653962. The cubic root of 4551120252 is about 1657.1917793283.

The spelling of 4551120252 in words is "four billion, five hundred fifty-one million, one hundred twenty thousand, two hundred fifty-two".