55373452973 has 2 divisors, whose sum is σ = 55373452974. Its totient is φ = 55373452972.

The previous prime is 55373452969. The next prime is 55373453011. The reversal of 55373452973 is 37925437355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49503135049 + 5870317924 = 222493^2 + 76618^2 .

It is a cyclic number.

It is not a de Polignac number, because 55373452973 - 2² = 55373452969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55373452073) 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, 27686726486 + 27686726487.

It is an arithmetic number, because the mean of its divisors is an integer number (27686726487).

Almost surely, 2^55373452973 is an apocalyptic number.

It is an amenable number.

55373452973 is a deficient number, since it is larger than the sum of its proper divisors (1).

55373452973 is an equidigital number, since it uses as much as digits as its factorization.

55373452973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907000, while the sum is 53.

The spelling of 55373452973 in words is "fifty-five billion, three hundred seventy-three million, four hundred fifty-two thousand, nine hundred seventy-three".