55704573 has 18 divisors (see below), whose sum is σ = 82839354. Its totient is φ = 36044352.

The previous prime is 55704533. The next prime is 55704581. The reversal of 55704573 is 37540755.

It can be written as a sum of positive squares in 3 ways, for example, as 44595684 + 11108889 = 6678^2 + 3333^2 .

It is not a de Polignac number, because 55704573 - 2⁸ = 55704317 is a prime.

It is a super-2 number, since 2×55704573² = 6205998906224658, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55704503) 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 in 17 ways as a sum of consecutive naturals, for example, 135993 + ... + 136401.

Almost surely, 2^55704573 is an apocalyptic number.

It is an amenable number.

55704573 is a deficient number, since it is larger than the sum of its proper divisors (27134781).

55704573 is an equidigital number, since it uses as much as digits as its factorization.

55704573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 55704573 is about 7463.5496246759. The cubic root of 55704573 is about 381.9122743833.

The spelling of 55704573 in words is "fifty-five million, seven hundred four thousand, five hundred seventy-three".