54403242521440 has 48 divisors (see below), whose sum is σ = 135292274172720. Its totient is φ = 20615965585920.

The previous prime is 54403242521437. The next prime is 54403242521443. The reversal of 54403242521440 is 4412524230445.

It is an interprime number because it is at equal distance from previous prime (54403242521437) and next prime (54403242521443).

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 = 54403242521393 and 54403242521402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54403242521443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8947898691 + ... + 8947904770.

It is an arithmetic number, because the mean of its divisors is an integer number (2818589045265).

Almost surely, 2^{54403242521440} is an apocalyptic number.

It is an amenable number.

54403242521440 is an abundant number, since it is smaller than the sum of its proper divisors (80889031651280).

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

54403242521440 is a wasteful number, since it uses less digits than its factorization.

54403242521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17895803495 (or 17895803487 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 54403242521440 its reverse (4412524230445), we get a palindrome (58815766751885).

The spelling of 54403242521440 in words is "fifty-four trillion, four hundred three billion, two hundred forty-two million, five hundred twenty-one thousand, four hundred forty".