55420692973 has 2 divisors, whose sum is σ = 55420692974. Its totient is φ = 55420692972.

The previous prime is 55420692967. The next prime is 55420693091. The reversal of 55420692973 is 37929602455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52167473604 + 3253219369 = 228402^2 + 57037^2 .

It is a cyclic number.

It is not a de Polignac number, because 55420692973 - 2⁵ = 55420692941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55420692973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55420692073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27710346486 + 27710346487.

It is an arithmetic number, because the mean of its divisors is an integer number (27710346487).

Almost surely, 2^55420692973 is an apocalyptic number.

It is an amenable number.

55420692973 is a deficient number, since it is larger than the sum of its proper divisors (1).

55420692973 is an equidigital number, since it uses as much as digits as its factorization.

55420692973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 55420692973 in words is "fifty-five billion, four hundred twenty million, six hundred ninety-two thousand, nine hundred seventy-three".