55388745733 has 2 divisors, whose sum is σ = 55388745734. Its totient is φ = 55388745732.

The previous prime is 55388745719. The next prime is 55388745761. The reversal of 55388745733 is 33754788355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55346326564 + 42419169 = 235258^2 + 6513^2 .

It is a cyclic number.

It is not a de Polignac number, because 55388745733 - 2¹³ = 55388737541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55385745733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27694372866 + 27694372867.

It is an arithmetic number, because the mean of its divisors is an integer number (27694372867).

Almost surely, 2^55388745733 is an apocalyptic number.

It is an amenable number.

55388745733 is a deficient number, since it is larger than the sum of its proper divisors (1).

55388745733 is an equidigital number, since it uses as much as digits as its factorization.

55388745733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336000, while the sum is 58.

The spelling of 55388745733 in words is "fifty-five billion, three hundred eighty-eight million, seven hundred forty-five thousand, seven hundred thirty-three".