54244535440 has 20 divisors (see below), whose sum is σ = 126118545084. Its totient is φ = 21697814144.

The previous prime is 54244535407. The next prime is 54244535473. The reversal of 54244535440 is 4453544245.

It is an interprime number because it is at equal distance from previous prime (54244535407) and next prime (54244535473).

It can be written as a sum of positive squares in 2 ways, for example, as 5585469696 + 48659065744 = 74736^2 + 220588^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 54244535393 and 54244535402.

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, 339028267 + ... + 339028426.

Almost surely, 2^54244535440 is an apocalyptic number.

It is an amenable number.

54244535440 is an abundant number, since it is smaller than the sum of its proper divisors (71874009644).

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

54244535440 is a wasteful number, since it uses less digits than its factorization.

54244535440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678056706 (or 678056700 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 40.

The spelling of 54244535440 in words is "fifty-four billion, two hundred forty-four million, five hundred thirty-five thousand, four hundred forty".