53985047438 has 12 divisors (see below), whose sum is σ = 94198399272. Its totient is φ = 23136448860.

The previous prime is 53985047437. The next prime is 53985047443. The reversal of 53985047438 is 83474058935.

It is a super-2 number, since 2×53985047438² (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 (53985047437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275433818 + ... + 275434013.

It is an arithmetic number, because the mean of its divisors is an integer number (7849866606).

Almost surely, 2^53985047438 is an apocalyptic number.

53985047438 is a deficient number, since it is larger than the sum of its proper divisors (40213351834).

53985047438 is a wasteful number, since it uses less digits than its factorization.

53985047438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550867847 (or 550867840 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 53985047438 in words is "fifty-three billion, nine hundred eighty-five million, forty-seven thousand, four hundred thirty-eight".