55623402011 has 2 divisors, whose sum is σ = 55623402012. Its totient is φ = 55623402010.

The previous prime is 55623402007. The next prime is 55623402031. The reversal of 55623402011 is 11020432655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55623402011 - 2² = 55623402007 is a prime.

It is not a weakly prime, because it can be changed into another prime (55623402001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27811701005 + 27811701006.

It is an arithmetic number, because the mean of its divisors is an integer number (27811701006).

Almost surely, 2^55623402011 is an apocalyptic number.

55623402011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55623402011 is an equidigital number, since it uses as much as digits as its factorization.

55623402011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 55623402011 its reverse (11020432655), we get a palindrome (66643834666).

The spelling of 55623402011 in words is "fifty-five billion, six hundred twenty-three million, four hundred two thousand, eleven".