281530399055 has 16 divisors (see below), whose sum is σ = 349504372800. Its totient is φ = 217446539520.

The previous prime is 281530399027. The next prime is 281530399067. The reversal of 281530399055 is 550993035182.

It is not a de Polignac number, because 281530399055 - 2³⁸ = 6652492111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281530398994 and 281530399012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3633206 + ... + 3709884.

It is an arithmetic number, because the mean of its divisors is an integer number (21844023300).

Almost surely, 2^281530399055 is an apocalyptic number.

281530399055 is a deficient number, since it is larger than the sum of its proper divisors (67973973745).

281530399055 is a wasteful number, since it uses less digits than its factorization.

281530399055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102034.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 281530399055 in words is "two hundred eighty-one billion, five hundred thirty million, three hundred ninety-nine thousand, fifty-five".