55740530 has 16 divisors (see below), whose sum is σ = 100661184. Its totient is φ = 22223280.

The previous prime is 55740521. The next prime is 55740533. The reversal of 55740530 is 3504755.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55740493 and 55740502.

It is not an unprimeable number, because it can be changed into a prime (55740533) 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, 5852 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (6291324).

Almost surely, 2^55740530 is an apocalyptic number.

55740530 is a deficient number, since it is larger than the sum of its proper divisors (44920654).

55740530 is a wasteful number, since it uses less digits than its factorization.

55740530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18241.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 55740530 is about 7465.9580764963. The cubic root of 55740530 is about 381.9944308098.

The spelling of 55740530 in words is "fifty-five million, seven hundred forty thousand, five hundred thirty".