53015540221 has 8 divisors (see below), whose sum is σ = 61419178304. Its totient is φ = 44819399520.

The previous prime is 53015540189. The next prime is 53015540251. The reversal of 53015540221 is 12204551035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53015540221 - 2⁵ = 53015540189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53015540221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015540251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51873795 + ... + 51874816.

It is an arithmetic number, because the mean of its divisors is an integer number (7677397288).

Almost surely, 2^53015540221 is an apocalyptic number.

It is an amenable number.

53015540221 is a deficient number, since it is larger than the sum of its proper divisors (8403638083).

53015540221 is a wasteful number, since it uses less digits than its factorization.

53015540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103748691.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 53015540221 in words is "fifty-three billion, fifteen million, five hundred forty thousand, two hundred twenty-one".