53817774221 has 8 divisors (see below), whose sum is σ = 56308243200. Its totient is φ = 51339852432.

The previous prime is 53817774217. The next prime is 53817774287. The reversal of 53817774221 is 12247771835.

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

It is a cyclic number.

It is not a de Polignac number, because 53817774221 - 2² = 53817774217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53817774121) 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, 3128021 + ... + 3145178.

It is an arithmetic number, because the mean of its divisors is an integer number (7038530400).

Almost surely, 2^53817774221 is an apocalyptic number.

It is an amenable number.

53817774221 is a deficient number, since it is larger than the sum of its proper divisors (2490468979).

53817774221 is a wasteful number, since it uses less digits than its factorization.

53817774221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273595.

The product of its digits is 658560, while the sum is 47.

The spelling of 53817774221 in words is "fifty-three billion, eight hundred seventeen million, seven hundred seventy-four thousand, two hundred twenty-one".