55712449 has 4 divisors (see below), whose sum is σ = 59998036. Its totient is φ = 51426864.

The previous prime is 55712431. The next prime is 55712453. The reversal of 55712449 is 94421755.

55712449 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10284849 + 45427600 = 3207^2 + 6740^2 .

It is a cyclic number.

It is not a de Polignac number, because 55712449 - 2⁹ = 55711937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55712749) 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 3 ways as a sum of consecutive naturals, for example, 2142774 + ... + 2142799.

It is an arithmetic number, because the mean of its divisors is an integer number (14999509).

Almost surely, 2^55712449 is an apocalyptic number.

It is an amenable number.

55712449 is a deficient number, since it is larger than the sum of its proper divisors (4285587).

55712449 is a wasteful number, since it uses less digits than its factorization.

55712449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285586.

The product of its digits is 50400, while the sum is 37.

The square root of 55712449 is about 7464.0772370066. The cubic root of 55712449 is about 381.9302729015.

The spelling of 55712449 in words is "fifty-five million, seven hundred twelve thousand, four hundred forty-nine".