54857355877 has 2 divisors, whose sum is σ = 54857355878. Its totient is φ = 54857355876.

The previous prime is 54857355853. The next prime is 54857355923. The reversal of 54857355877 is 77855375845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53238178756 + 1619177121 = 230734^2 + 40239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54857355877 is a prime.

It is a super-3 number, since 3×54857355877³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54857355827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27428677938 + 27428677939.

It is an arithmetic number, because the mean of its divisors is an integer number (27428677939).

Almost surely, 2^54857355877 is an apocalyptic number.

It is an amenable number.

54857355877 is a deficient number, since it is larger than the sum of its proper divisors (1).

54857355877 is an equidigital number, since it uses as much as digits as its factorization.

54857355877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640000, while the sum is 64.

It can be divided in two parts, 548573 and 55877, that added together give a triangular number (604450 = T₁₀₉₉).

The spelling of 54857355877 in words is "fifty-four billion, eight hundred fifty-seven million, three hundred fifty-five thousand, eight hundred seventy-seven".