54783135931 has 4 divisors (see below), whose sum is σ = 56057162392. Its totient is φ = 53509109472.

The previous prime is 54783135929. The next prime is 54783135959. The reversal of 54783135931 is 13953138745.

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 54783135931 - 2¹ = 54783135929 is a prime.

It is a super-2 number, since 2×54783135931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54783135961) 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, 637013166 + ... + 637013251.

It is an arithmetic number, because the mean of its divisors is an integer number (14014290598).

Almost surely, 2^54783135931 is an apocalyptic number.

54783135931 is a deficient number, since it is larger than the sum of its proper divisors (1274026461).

54783135931 is a wasteful number, since it uses less digits than its factorization.

54783135931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274026460.

The product of its digits is 1360800, while the sum is 49.

The spelling of 54783135931 in words is "fifty-four billion, seven hundred eighty-three million, one hundred thirty-five thousand, nine hundred thirty-one".