53545431320 has 32 divisors (see below), whose sum is σ = 120489318720. Its totient is φ = 21416021760.

The previous prime is 53545431283. The next prime is 53545431361. The reversal of 53545431320 is 2313454535.

It is a happy number.

53545431320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53545431320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371444 + ... + 495036.

It is an arithmetic number, because the mean of its divisors is an integer number (3765291210).

Almost surely, 2^53545431320 is an apocalyptic number.

It is an amenable number.

53545431320 is an abundant number, since it is smaller than the sum of its proper divisors (66943887400).

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

53545431320 is a wasteful number, since it uses less digits than its factorization.

53545431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134435 (or 134431 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 53545431320 its reverse (2313454535), we get a palindrome (55858885855).

The spelling of 53545431320 in words is "fifty-three billion, five hundred forty-five million, four hundred thirty-one thousand, three hundred twenty".