55030747 has 4 divisors (see below), whose sum is σ = 55649160. Its totient is φ = 54412336.

The previous prime is 55030741. The next prime is 55030753. The reversal of 55030747 is 74703055.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55030741) and next prime (55030753).

It is a cyclic number.

It is not a de Polignac number, because 55030747 - 2³ = 55030739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55030741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309073 + ... + 309250.

It is an arithmetic number, because the mean of its divisors is an integer number (13912290).

Almost surely, 2^55030747 is an apocalyptic number.

55030747 is a deficient number, since it is larger than the sum of its proper divisors (618413).

55030747 is an equidigital number, since it uses as much as digits as its factorization.

55030747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618412.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 55030747 is about 7418.2711597784. The cubic root of 55030747 is about 380.3660991651.

The spelling of 55030747 in words is "fifty-five million, thirty thousand, seven hundred forty-seven".