55089669 has 16 divisors (see below), whose sum is σ = 77703552. Its totient is φ = 34645248.

The previous prime is 55089667. The next prime is 55089677. The reversal of 55089669 is 96698055.

It is not a de Polignac number, because 55089669 - 2¹ = 55089667 is a prime.

It is a super-2 number, since 2×55089669² = 6069743261059122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55089667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432 + ... + 10505.

It is an arithmetic number, because the mean of its divisors is an integer number (4856472).

Almost surely, 2^55089669 is an apocalyptic number.

It is an amenable number.

55089669 is a deficient number, since it is larger than the sum of its proper divisors (22613883).

55089669 is a wasteful number, since it uses less digits than its factorization.

55089669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 55089669 is about 7422.2415077926. The cubic root of 55089669 is about 380.5018047381.

The spelling of 55089669 in words is "fifty-five million, eighty-nine thousand, six hundred sixty-nine".