281581270055 has 32 divisors (see below), whose sum is σ = 368451115200. Its totient is φ = 205864243200.

The previous prime is 281581270049. The next prime is 281581270063. The reversal of 281581270055 is 550072185182.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-281581270055 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281581269988 and 281581270015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59486 + ... + 752795.

It is an arithmetic number, because the mean of its divisors is an integer number (11514097350).

Almost surely, 2^281581270055 is an apocalyptic number.

281581270055 is a deficient number, since it is larger than the sum of its proper divisors (86869845145).

281581270055 is a wasteful number, since it uses less digits than its factorization.

281581270055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812435.

The product of its (nonzero) digits is 224000, while the sum is 44.

The spelling of 281581270055 in words is "two hundred eighty-one billion, five hundred eighty-one million, two hundred seventy thousand, fifty-five".