53857919153 has 4 divisors (see below), whose sum is σ = 53877950820. Its totient is φ = 53837887488.

The previous prime is 53857919149. The next prime is 53857919201. The reversal of 53857919153 is 35191975835.

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 25697051809 + 28160867344 = 160303^2 + 167812^2 .

It is a cyclic number.

It is not a de Polignac number, because 53857919153 - 2² = 53857919149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53857919123) 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, 10011800 + ... + 10017177.

It is an arithmetic number, because the mean of its divisors is an integer number (13469487705).

Almost surely, 2^53857919153 is an apocalyptic number.

It is an amenable number.

53857919153 is a deficient number, since it is larger than the sum of its proper divisors (20031667).

53857919153 is a wasteful number, since it uses less digits than its factorization.

53857919153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20031666.

The product of its digits is 5103000, while the sum is 56.

The spelling of 53857919153 in words is "fifty-three billion, eight hundred fifty-seven million, nine hundred nineteen thousand, one hundred fifty-three".