55198929 has 8 divisors (see below), whose sum is σ = 73702720. Its totient is φ = 36747216.

The previous prime is 55198921. The next prime is 55198939. The reversal of 55198929 is 92989155.

It is a happy number.

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

It is not a de Polignac number, because 55198929 - 2³ = 55198921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55198921) 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, 10474 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (9212840).

Almost surely, 2^55198929 is an apocalyptic number.

It is an amenable number.

55198929 is a deficient number, since it is larger than the sum of its proper divisors (18503791).

55198929 is a wasteful number, since it uses less digits than its factorization.

55198929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26039.

The product of its digits is 291600, while the sum is 48.

The square root of 55198929 is about 7429.5981721759. The cubic root of 55198929 is about 380.7531898809.

The spelling of 55198929 in words is "fifty-five million, one hundred ninety-eight thousand, nine hundred twenty-nine".