55075030 has 8 divisors (see below), whose sum is σ = 99135072. Its totient is φ = 22030008.

The previous prime is 55075021. The next prime is 55075037. The reversal of 55075030 is 3057055.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 55074986 and 55075004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55075037) 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 3 ways as a sum of consecutive naturals, for example, 2753742 + ... + 2753761.

It is an arithmetic number, because the mean of its divisors is an integer number (12391884).

Almost surely, 2^55075030 is an apocalyptic number.

55075030 is a deficient number, since it is larger than the sum of its proper divisors (44060042).

55075030 is a wasteful number, since it uses less digits than its factorization.

55075030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507510.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 55075030 is about 7421.2552846537. The cubic root of 55075030 is about 380.4680981195.

The spelling of 55075030 in words is "fifty-five million, seventy-five thousand, thirty".