53891777231 has 8 divisors (see below), whose sum is σ = 58453635744. Its totient is φ = 49484558080.

The previous prime is 53891777221. The next prime is 53891777293. The reversal of 53891777231 is 13277719835.

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 53891777231 - 2¹⁰ = 53891776207 is a prime.

It is a super-2 number, since 2×53891777231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53891777221) 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 7 ways as a sum of consecutive naturals, for example, 38659115 + ... + 38660508.

It is an arithmetic number, because the mean of its divisors is an integer number (7306704468).

Almost surely, 2^53891777231 is an apocalyptic number.

53891777231 is a deficient number, since it is larger than the sum of its proper divisors (4561858513).

53891777231 is a wasteful number, since it uses less digits than its factorization.

53891777231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77319681.

The product of its digits is 2222640, while the sum is 53.

The spelling of 53891777231 in words is "fifty-three billion, eight hundred ninety-one million, seven hundred seventy-seven thousand, two hundred thirty-one".