281355878053 has 2 divisors, whose sum is σ = 281355878054. Its totient is φ = 281355878052.

The previous prime is 281355877993. The next prime is 281355878143. The reversal of 281355878053 is 350878553182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207176997889 + 74178880164 = 455167^2 + 272358^2 .

It is a cyclic number.

It is not a de Polignac number, because 281355878053 - 2⁹ = 281355877541 is a prime.

It is a super-2 number, since 2×281355878053² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 281355877985 and 281355878003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281355878653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140677939026 + 140677939027.

It is an arithmetic number, because the mean of its divisors is an integer number (140677939027).

Almost surely, 2^281355878053 is an apocalyptic number.

It is an amenable number.

281355878053 is a deficient number, since it is larger than the sum of its proper divisors (1).

281355878053 is an equidigital number, since it uses as much as digits as its factorization.

281355878053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 281355878053 in words is "two hundred eighty-one billion, three hundred fifty-five million, eight hundred seventy-eight thousand, fifty-three".