53603212440 has 128 divisors (see below), whose sum is σ = 162281387520. Its totient is φ = 14163916800.

The previous prime is 53603212417. The next prime is 53603212459. The reversal of 53603212440 is 4421230635.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53603212398 and 53603212407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6629200 + ... + 6637280.

It is an arithmetic number, because the mean of its divisors is an integer number (1267823340).

Almost surely, 2^53603212440 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 53603212440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81140693760).

53603212440 is an abundant number, since it is smaller than the sum of its proper divisors (108678175080).

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

53603212440 is a wasteful number, since it uses less digits than its factorization.

53603212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593 (or 8589 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 53603212440 in words is "fifty-three billion, six hundred three million, two hundred twelve thousand, four hundred forty".