53031075840 has 576 divisors, whose sum is σ = 196041021120. Its totient is φ = 13759414272.

The previous prime is 53031075751. The next prime is 53031075893. The reversal of 53031075840 is 4857013035.

53031075840 is a `hidden beast` number, since 530 + 3 + 10 + 75 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53031075795 and 53031075804.

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, 1433272302 + ... + 1433272338.

It is an arithmetic number, because the mean of its divisors is an integer number (340348995).

Almost surely, 2^53031075840 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 53031075840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98020510560).

53031075840 is an abundant number, since it is smaller than the sum of its proper divisors (143009945280).

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

53031075840 is an frugal number, since it uses more digits than its factorization.

53031075840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 53031075840 its reverse (4857013035), we get a palindrome (57888088875).

The spelling of 53031075840 in words is "fifty-three billion, thirty-one million, seventy-five thousand, eight hundred forty".