55970773 has 2 divisors, whose sum is σ = 55970774. Its totient is φ = 55970772.

The previous prime is 55970743. The next prime is 55970797. The reversal of 55970773 is 37707955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 1830609 = 7358^2 + 1353^2 .

It is a cyclic number.

It is not a de Polignac number, because 55970773 - 2¹⁷ = 55839701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55970723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27985386 + 27985387.

It is an arithmetic number, because the mean of its divisors is an integer number (27985387).

Almost surely, 2^55970773 is an apocalyptic number.

It is an amenable number.

55970773 is a deficient number, since it is larger than the sum of its proper divisors (1).

55970773 is an equidigital number, since it uses as much as digits as its factorization.

55970773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 231525, while the sum is 43.

The square root of 55970773 is about 7481.3617076038. The cubic root of 55970773 is about 382.5196663532.

The spelling of 55970773 in words is "fifty-five million, nine hundred seventy thousand, seven hundred seventy-three".