55890077 has 8 divisors (see below), whose sum is σ = 59373600. Its totient is φ = 52460784.

The previous prime is 55890071. The next prime is 55890089. The reversal of 55890077 is 77009855.

It is a happy number.

55890077 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 55890077 - 2⁴ = 55890061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55890071) 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, 11423 + ... + 15564.

It is an arithmetic number, because the mean of its divisors is an integer number (7421700).

Almost surely, 2^55890077 is an apocalyptic number.

It is an amenable number.

55890077 is a deficient number, since it is larger than the sum of its proper divisors (3483523).

55890077 is a wasteful number, since it uses less digits than its factorization.

55890077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27115.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 55890077 is about 7475.9666264638. The cubic root of 55890077 is about 382.3357450445.

The spelling of 55890077 in words is "fifty-five million, eight hundred ninety thousand, seventy-seven".