53023312240 has 40 divisors (see below), whose sum is σ = 125119201680. Its totient is φ = 20892765696.

The previous prime is 53023312229. The next prime is 53023312253. The reversal of 53023312240 is 4221332035.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×53023312240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4940845 + ... + 4951564.

It is an arithmetic number, because the mean of its divisors is an integer number (3127980042).

Almost surely, 2^53023312240 is an apocalyptic number.

It is an amenable number.

53023312240 is an abundant number, since it is smaller than the sum of its proper divisors (72095889440).

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

53023312240 is a wasteful number, since it uses less digits than its factorization.

53023312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892489 (or 9892483 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 53023312240 its reverse (4221332035), we get a palindrome (57244644275).

The spelling of 53023312240 in words is "fifty-three billion, twenty-three million, three hundred twelve thousand, two hundred forty".