54156646231 has 4 divisors (see below), whose sum is σ = 54244420992. Its totient is φ = 54068871472.

The previous prime is 54156646177. The next prime is 54156646279. The reversal of 54156646231 is 13264665145.

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

It is a cyclic number.

It is not a de Polignac number, because 54156646231 - 2¹⁷ = 54156515159 is a prime.

It is a super-2 number, since 2×54156646231² (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 (54156640231) 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, 43886455 + ... + 43887688.

It is an arithmetic number, because the mean of its divisors is an integer number (13561105248).

Almost surely, 2^54156646231 is an apocalyptic number.

54156646231 is a deficient number, since it is larger than the sum of its proper divisors (87774761).

54156646231 is an equidigital number, since it uses as much as digits as its factorization.

54156646231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87774760.

The product of its digits is 518400, while the sum is 43.

The spelling of 54156646231 in words is "fifty-four billion, one hundred fifty-six million, six hundred forty-six thousand, two hundred thirty-one".