55248106614581 has 2 divisors, whose sum is σ = 55248106614582. Its totient is φ = 55248106614580.

The previous prime is 55248106614527. The next prime is 55248106614599. The reversal of 55248106614581 is 18541660184255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53015072511025 + 2233034103556 = 7281145^2 + 1494334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55248106614581 is a prime.

It is a super-2 number, since 2×55248106614581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55248106614881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27624053307290 + 27624053307291.

It is an arithmetic number, because the mean of its divisors is an integer number (27624053307291).

Almost surely, 2^{55248106614581} is an apocalyptic number.

It is an amenable number.

55248106614581 is a deficient number, since it is larger than the sum of its proper divisors (1).

55248106614581 is an equidigital number, since it uses as much as digits as its factorization.

55248106614581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216000, while the sum is 56.

The spelling of 55248106614581 in words is "fifty-five trillion, two hundred forty-eight billion, one hundred six million, six hundred fourteen thousand, five hundred eighty-one".