53131532345320 has 64 divisors (see below), whose sum is σ = 140445589011840. Its totient is φ = 17834360505600.

The previous prime is 53131532345303. The next prime is 53131532345323. The reversal of 53131532345320 is 2354323513135.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (53131532345323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644358996 + ... + 4644370435.

It is an arithmetic number, because the mean of its divisors is an integer number (2194462328310).

Almost surely, 2^{53131532345320} is an apocalyptic number.

It is an amenable number.

53131532345320 is an abundant number, since it is smaller than the sum of its proper divisors (87314056666520).

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

53131532345320 is a wasteful number, since it uses less digits than its factorization.

53131532345320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288729466 (or 9288729462 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 40.

Adding to 53131532345320 its reverse (2354323513135), we get a palindrome (55485855858455).

The spelling of 53131532345320 in words is "fifty-three trillion, one hundred thirty-one billion, five hundred thirty-two million, three hundred forty-five thousand, three hundred twenty".