53847563573 has 4 divisors (see below), whose sum is σ = 55704376140. Its totient is φ = 51990751008.

The previous prime is 53847563557. The next prime is 53847563587. The reversal of 53847563573 is 37536574835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14937239524 + 38910324049 = 122218^2 + 197257^2 .

It is a cyclic number.

It is not a de Polignac number, because 53847563573 - 2⁴ = 53847563557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53847533573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928406240 + ... + 928406297.

It is an arithmetic number, because the mean of its divisors is an integer number (13926094035).

Almost surely, 2^53847563573 is an apocalyptic number.

It is an amenable number.

53847563573 is a deficient number, since it is larger than the sum of its proper divisors (1856812567).

53847563573 is a wasteful number, since it uses less digits than its factorization.

53847563573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856812566.

The product of its digits is 31752000, while the sum is 56.

The spelling of 53847563573 in words is "fifty-three billion, eight hundred forty-seven million, five hundred sixty-three thousand, five hundred seventy-three".