55641469 has 8 divisors (see below), whose sum is σ = 61383672. Its totient is φ = 50108160.

The previous prime is 55641413. The next prime is 55641473. The reversal of 55641469 is 96414655.

It is a happy number.

55641469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4347225 + 51294244 = 2085^2 + 7162^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55641469 is a prime.

It is a super-2 number, since 2×55641469² = 6191946144955922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55641499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51664 + ... + 52729.

It is an arithmetic number, because the mean of its divisors is an integer number (7672959).

Almost surely, 2^55641469 is an apocalyptic number.

It is an amenable number.

55641469 is a deficient number, since it is larger than the sum of its proper divisors (5742203).

55641469 is a wasteful number, since it uses less digits than its factorization.

55641469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104447.

The product of its digits is 129600, while the sum is 40.

The square root of 55641469 is about 7459.3209476466. The cubic root of 55641469 is about 381.7680055672.

It can be divided in two parts, 556 and 41469, that added together give a square (42025 = 205²).

The spelling of 55641469 in words is "fifty-five million, six hundred forty-one thousand, four hundred sixty-nine".