55929199 has 4 divisors (see below), whose sum is σ = 56020464. Its totient is φ = 55837936.

The previous prime is 55929191. The next prime is 55929233. The reversal of 55929199 is 99192955.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99192955 = 5 ⋅19838591.

It is a cyclic number.

It is not a de Polignac number, because 55929199 - 2³ = 55929191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55929191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44707 + ... + 45940.

It is an arithmetic number, because the mean of its divisors is an integer number (14005116).

Almost surely, 2^55929199 is an apocalyptic number.

55929199 is a deficient number, since it is larger than the sum of its proper divisors (91265).

55929199 is an equidigital number, since it uses as much as digits as its factorization.

55929199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91264.

The product of its digits is 328050, while the sum is 49.

The square root of 55929199 is about 7478.5826865791. The cubic root of 55929199 is about 382.4249335083.

The spelling of 55929199 in words is "fifty-five million, nine hundred twenty-nine thousand, one hundred ninety-nine".