53150333440 has 80 divisors (see below), whose sum is σ = 129841017768. Its totient is φ = 20858945536.

The previous prime is 53150333437. The next prime is 53150333441. The reversal of 53150333440 is 4433305135.

It can be written as a sum of positive squares in 4 ways, for example, as 41805527296 + 11344806144 = 204464^2 + 106512^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (53150333441) 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, 60187 + ... + 331546.

Almost surely, 2^53150333440 is an apocalyptic number.

It is an amenable number.

53150333440 is an abundant number, since it is smaller than the sum of its proper divisors (76690684328).

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

53150333440 is an equidigital number, since it uses as much as digits as its factorization.

53150333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391809 (or 391793 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 53150333440 its reverse (4433305135), we get a palindrome (57583638575).

The spelling of 53150333440 in words is "fifty-three billion, one hundred fifty million, three hundred thirty-three thousand, four hundred forty".