55029247 has 16 divisors (see below), whose sum is σ = 69916672. Its totient is φ = 42132960.

The previous prime is 55029203. The next prime is 55029251. The reversal of 55029247 is 74292055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55029247 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55029277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6933 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (4369792).

Almost surely, 2^55029247 is an apocalyptic number.

55029247 is a deficient number, since it is larger than the sum of its proper divisors (14887425).

55029247 is a wasteful number, since it uses less digits than its factorization.

55029247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19558.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 55029247 is about 7418.1700573659. The cubic root of 55029247 is about 380.3626431921.

The spelling of 55029247 in words is "fifty-five million, twenty-nine thousand, two hundred forty-seven".