55815414272 has 90 divisors (see below), whose sum is σ = 114245612943. Its totient is φ = 27242156032.

The previous prime is 55815414241. The next prime is 55815414323. The reversal of 55815414272 is 27241451855.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

55815414272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 55401861376 + 413552896 = 235376^2 + 20336^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=167056.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 283326878 + ... + 283327074.

Almost surely, 2^55815414272 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 55815414272

55815414272 is an abundant number, since it is smaller than the sum of its proper divisors (58430198671).

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

55815414272 is an frugal number, since it uses more digits than its factorization.

55815414272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 252 counting only the distinct ones).

The product of its digits is 448000, while the sum is 44.

The spelling of 55815414272 in words is "fifty-five billion, eight hundred fifteen million, four hundred fourteen thousand, two hundred seventy-two".