55717669 has 8 divisors (see below), whose sum is σ = 64628288. Its totient is φ = 47044800.

The previous prime is 55717667. The next prime is 55717679. The reversal of 55717669 is 96671755.

It is a happy number.

55717669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55717669 - 2¹ = 55717667 is a prime.

It is a super-2 number, since 2×55717669² = 6208917277587122, 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 (55717667) 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, 58932 + ... + 59869.

It is an arithmetic number, because the mean of its divisors is an integer number (8078536).

Almost surely, 2^55717669 is an apocalyptic number.

It is an amenable number.

55717669 is a deficient number, since it is larger than the sum of its proper divisors (8910619).

55717669 is a wasteful number, since it uses less digits than its factorization.

55717669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118875.

The product of its digits is 396900, while the sum is 46.

The square root of 55717669 is about 7464.4269036544. The cubic root of 55717669 is about 381.9422008984.

The spelling of 55717669 in words is "fifty-five million, seven hundred seventeen thousand, six hundred sixty-nine".