55220233311377 has 2 divisors, whose sum is σ = 55220233311378. Its totient is φ = 55220233311376.

The previous prime is 55220233311367. The next prime is 55220233311443. The reversal of 55220233311377 is 77311333202255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42497999864401 + 12722233446976 = 6519049^2 + 3566824^2 .

It is a cyclic number.

It is not a de Polignac number, because 55220233311377 - 2¹⁰ = 55220233310353 is a prime.

It is a super-2 number, since 2×55220233311377² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55220233311367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27610116655688 + 27610116655689.

It is an arithmetic number, because the mean of its divisors is an integer number (27610116655689).

Almost surely, 2^{55220233311377} is an apocalyptic number.

It is an amenable number.

55220233311377 is a deficient number, since it is larger than the sum of its proper divisors (1).

55220233311377 is an equidigital number, since it uses as much as digits as its factorization.

55220233311377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 44.

The spelling of 55220233311377 in words is "fifty-five trillion, two hundred twenty billion, two hundred thirty-three million, three hundred eleven thousand, three hundred seventy-seven".