55199673 has 12 divisors (see below), whose sum is σ = 82482660. Its totient is φ = 35530656.

The previous prime is 55199603. The next prime is 55199681. The reversal of 55199673 is 37699155.

55199673 is a `hidden beast` number, since 551 + 9 + 96 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34433424 + 20766249 = 5868^2 + 4557^2 .

It is not a de Polignac number, because 55199673 - 2¹² = 55195577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55199603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105486 + ... + 106007.

It is an arithmetic number, because the mean of its divisors is an integer number (6873555).

Almost surely, 2^55199673 is an apocalyptic number.

It is an amenable number.

55199673 is a deficient number, since it is larger than the sum of its proper divisors (27282987).

55199673 is a wasteful number, since it uses less digits than its factorization.

55199673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211528 (or 211525 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 55199673 is about 7429.6482420098. The cubic root of 55199673 is about 380.7549005367.

The spelling of 55199673 in words is "fifty-five million, one hundred ninety-nine thousand, six hundred seventy-three".