55875730 has 16 divisors (see below), whose sum is σ = 101012184. Its totient is φ = 22253440.

The previous prime is 55875709. The next prime is 55875731. The reversal of 55875730 is 3757855.

It can be written as a sum of positive squares in 4 ways, for example, as 15768841 + 40106889 = 3971^2 + 6333^2 .

It is not an unprimeable number, because it can be changed into a prime (55875731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9661 + ... + 14320.

Almost surely, 2^55875730 is an apocalyptic number.

55875730 is a deficient number, since it is larger than the sum of its proper divisors (45136454).

55875730 is a wasteful number, since it uses less digits than its factorization.

55875730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24221.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 55875730 is about 7475.0070234081. The cubic root of 55875730 is about 382.3030270102.

The spelling of 55875730 in words is "fifty-five million, eight hundred seventy-five thousand, seven hundred thirty".