55702973 has 2 divisors, whose sum is σ = 55702974. Its totient is φ = 55702972.

The previous prime is 55702961. The next prime is 55702991. The reversal of 55702973 is 37920755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 3545689 = 7222^2 + 1883^2 .

It is a cyclic number.

It is not a de Polignac number, because 55702973 - 2⁶ = 55702909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55702993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27851486 + 27851487.

It is an arithmetic number, because the mean of its divisors is an integer number (27851487).

Almost surely, 2^55702973 is an apocalyptic number.

It is an amenable number.

55702973 is a deficient number, since it is larger than the sum of its proper divisors (1).

55702973 is an equidigital number, since it uses as much as digits as its factorization.

55702973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 55702973 is about 7463.4424363024. The cubic root of 55702973 is about 381.9086177984.

The spelling of 55702973 in words is "fifty-five million, seven hundred two thousand, nine hundred seventy-three".