53221136460 has 48 divisors (see below), whose sum is σ = 149040368736. Its totient is φ = 14190285312.

The previous prime is 53221136447. The next prime is 53221136461. The reversal of 53221136460 is 6463112235.

It is not an unprimeable number, because it can be changed into a prime (53221136461) 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, 389304 + ... + 507936.

It is an arithmetic number, because the mean of its divisors is an integer number (3105007682).

Almost surely, 2^53221136460 is an apocalyptic number.

It is an amenable number.

53221136460 is an abundant number, since it is smaller than the sum of its proper divisors (95819232276).

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

53221136460 is a wasteful number, since it uses less digits than its factorization.

53221136460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126122 (or 126120 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 53221136460 its reverse (6463112235), we get a palindrome (59684248695).

The spelling of 53221136460 in words is "fifty-three billion, two hundred twenty-one million, one hundred thirty-six thousand, four hundred sixty".