55281827280626 has 16 divisors (see below), whose sum is σ = 87853155980760. Its totient is φ = 25999390352640.

The previous prime is 55281827280623. The next prime is 55281827280689. The reversal of 55281827280626 is 62608272818255.

It is a Cunningham number, because it is equal to 7435175²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 55281827280625 + 1 = 7435175^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (55281827280623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487042145 + ... + 487155636.

Almost surely, 2^{55281827280626} is an apocalyptic number.

55281827280626 is a deficient number, since it is larger than the sum of its proper divisors (32571328700134).

55281827280626 is a wasteful number, since it uses less digits than its factorization.

55281827280626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974199469.

The product of its (nonzero) digits is 51609600, while the sum is 62.

The spelling of 55281827280626 in words is "fifty-five trillion, two hundred eighty-one billion, eight hundred twenty-seven million, two hundred eighty thousand, six hundred twenty-six".