53264312440 has 16 divisors (see below), whose sum is σ = 119844703080. Its totient is φ = 21305724960.

The previous prime is 53264312429. The next prime is 53264312447. The reversal of 53264312440 is 4421346235.

53264312440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 53264312396 and 53264312405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53264312447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665803866 + ... + 665803945.

Almost surely, 2^53264312440 is an apocalyptic number.

It is an amenable number.

53264312440 is an abundant number, since it is smaller than the sum of its proper divisors (66580390640).

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

53264312440 is a wasteful number, since it uses less digits than its factorization.

53264312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331607822 (or 1331607818 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 53264312440 its reverse (4421346235), we get a palindrome (57685658675).

The spelling of 53264312440 in words is "fifty-three billion, two hundred sixty-four million, three hundred twelve thousand, four hundred forty".