55744999 has 4 divisors (see below), whose sum is σ = 56184064. Its totient is φ = 55305936.

The previous prime is 55744991. The next prime is 55745003. The reversal of 55744999 is 99944755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99944755 = 5 ⋅19988951.

It is a cyclic number.

It is not a de Polignac number, because 55744999 - 2³ = 55744991 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 (55744991) 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, 219342 + ... + 219595.

It is an arithmetic number, because the mean of its divisors is an integer number (14046016).

Almost surely, 2^55744999 is an apocalyptic number.

55744999 is a deficient number, since it is larger than the sum of its proper divisors (439065).

55744999 is a wasteful number, since it uses less digits than its factorization.

55744999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439064.

The product of its digits is 2041200, while the sum is 52.

The square root of 55744999 is about 7466.2573622934. The cubic root of 55744999 is about 382.0046393450.

The spelling of 55744999 in words is "fifty-five million, seven hundred forty-four thousand, nine hundred ninety-nine".