55089767 has 4 divisors (see below), whose sum is σ = 55366800. Its totient is φ = 54812736.

The previous prime is 55089757. The next prime is 55089787. The reversal of 55089767 is 76798055.

It is a happy number.

55089767 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55089767 - 2¹² = 55085671 is a prime.

It is a super-2 number, since 2×55089767² = 6069764856228578, 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 (55089757) 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 3 ways as a sum of consecutive naturals, for example, 138218 + ... + 138615.

It is an arithmetic number, because the mean of its divisors is an integer number (13841700).

Almost surely, 2^55089767 is an apocalyptic number.

55089767 is a deficient number, since it is larger than the sum of its proper divisors (277033).

55089767 is a wasteful number, since it uses less digits than its factorization.

55089767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277032.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 55089767 is about 7422.2481095690. The cubic root of 55089767 is about 380.5020303651.

The spelling of 55089767 in words is "fifty-five million, eighty-nine thousand, seven hundred sixty-seven".