55297669 has 8 divisors (see below), whose sum is σ = 63463680. Its totient is φ = 47198256.

The previous prime is 55297661. The next prime is 55297679. The reversal of 55297669 is 96679255.

55297669 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 not a de Polignac number, because 55297669 - 2³ = 55297661 is a prime.

It is a super-2 number, since 2×55297669² = 6115664393667122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55297661) 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, 14854 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (7932960).

Almost surely, 2^55297669 is an apocalyptic number.

It is an amenable number.

55297669 is a deficient number, since it is larger than the sum of its proper divisors (8166011).

55297669 is a wasteful number, since it uses less digits than its factorization.

55297669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33299.

The product of its digits is 1020600, while the sum is 49.

The square root of 55297669 is about 7436.2402462535. The cubic root of 55297669 is about 380.9800854378.

The spelling of 55297669 in words is "fifty-five million, two hundred ninety-seven thousand, six hundred sixty-nine".