53015544549 has 16 divisors (see below), whose sum is σ = 85681688640. Its totient is φ = 32130632880.

The previous prime is 53015544539. The next prime is 53015544557. The reversal of 53015544549 is 94544551035.

It is a happy number.

53015544549 is a `hidden beast` number, since 53 + 0 + 1 + 5 + 54 + 4 + 549 = 666.

It is not a de Polignac number, because 53015544549 - 2¹² = 53015540453 is a prime.

It is a super-2 number, since 2×53015544549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015544539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89251462 + ... + 89252055.

It is an arithmetic number, because the mean of its divisors is an integer number (5355105540).

Almost surely, 2^53015544549 is an apocalyptic number.

It is an amenable number.

53015544549 is a deficient number, since it is larger than the sum of its proper divisors (32666144091).

53015544549 is a wasteful number, since it uses less digits than its factorization.

53015544549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178503537 (or 178503531 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 53015544549 in words is "fifty-three billion, fifteen million, five hundred forty-four thousand, five hundred forty-nine".