54233605640 has 16 divisors (see below), whose sum is σ = 122025612780. Its totient is φ = 21693442240.

The previous prime is 54233605633. The next prime is 54233605661. The reversal of 54233605640 is 4650633245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51203543524 + 3030062116 = 226282^2 + 55046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54233605594 and 54233605603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677920031 + ... + 677920110.

Almost surely, 2^54233605640 is an apocalyptic number.

It is an amenable number.

54233605640 is an abundant number, since it is smaller than the sum of its proper divisors (67792007140).

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

54233605640 is a wasteful number, since it uses less digits than its factorization.

54233605640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355840152 (or 1355840148 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 54233605640 in words is "fifty-four billion, two hundred thirty-three million, six hundred five thousand, six hundred forty".