55550057 has 8 divisors (see below), whose sum is σ = 56272776. Its totient is φ = 54830592.

The previous prime is 55550041. The next prime is 55550059. The reversal of 55550057 is 75005555.

55550057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9024016 + 46526041 = 3004^2 + 6821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55550057 - 2⁴ = 55550041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55550059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62903 + ... + 63779.

It is an arithmetic number, because the mean of its divisors is an integer number (7034097).

Almost surely, 2^55550057 is an apocalyptic number.

It is an amenable number.

55550057 is a deficient number, since it is larger than the sum of its proper divisors (722719).

55550057 is an equidigital number, since it uses as much as digits as its factorization.

55550057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627.

The product of its (nonzero) digits is 21875, while the sum is 32.

The square root of 55550057 is about 7453.1910615521. The cubic root of 55550057 is about 381.5588252194.

The spelling of 55550057 in words is "fifty-five million, five hundred fifty thousand, fifty-seven".