55670273281 has 4 divisors (see below), whose sum is σ = 63623169472. Its totient is φ = 47717377092.

The previous prime is 55670273261. The next prime is 55670273359. The reversal of 55670273281 is 18237207655.

55670273281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55670273281 - 2⁹ = 55670272769 is a prime.

It is a super-2 number, since 2×55670273281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55670273261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3976448085 + ... + 3976448098.

It is an arithmetic number, because the mean of its divisors is an integer number (15905792368).

Almost surely, 2^55670273281 is an apocalyptic number.

It is an amenable number.

55670273281 is a deficient number, since it is larger than the sum of its proper divisors (7952896191).

55670273281 is an equidigital number, since it uses as much as digits as its factorization.

55670273281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952896190.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 55670273281 in words is "fifty-five billion, six hundred seventy million, two hundred seventy-three thousand, two hundred eighty-one".