54771256512 has 280 divisors, whose sum is σ = 185857103520. Its totient is φ = 15623331840.

The previous prime is 54771256483. The next prime is 54771256541. The reversal of 54771256512 is 21565217745.

54771256512 is a `hidden beast` number, since 5 + 4 + 7 + 7 + 125 + 6 + 512 = 666.

It is an interprime number because it is at equal distance from previous prime (54771256483) and next prime (54771256541).

It is a super-2 number, since 2×54771256512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40242712 + ... + 40244072.

Almost surely, 2^54771256512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54771256512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92928551760).

54771256512 is an abundant number, since it is smaller than the sum of its proper divisors (131085847008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54771256512 is a wasteful number, since it uses less digits than its factorization.

54771256512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501 (or 2482 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The spelling of 54771256512 in words is "fifty-four billion, seven hundred seventy-one million, two hundred fifty-six thousand, five hundred twelve".