55290977 has 8 divisors (see below), whose sum is σ = 63456000. Its totient is φ = 47192544.

The previous prime is 55290971. The next prime is 55290979. The reversal of 55290977 is 77909255.

55290977 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 55290977 - 2¹⁶ = 55225441 is a prime.

It is a super-2 number, since 2×55290977² = 6114184275229058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55290971) 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, 14852 + ... + 18197.

It is an arithmetic number, because the mean of its divisors is an integer number (7932000).

Almost surely, 2^55290977 is an apocalyptic number.

It is an amenable number.

55290977 is a deficient number, since it is larger than the sum of its proper divisors (8165023).

55290977 is a wasteful number, since it uses less digits than its factorization.

55290977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33295.

The product of its (nonzero) digits is 198450, while the sum is 44.

The square root of 55290977 is about 7435.7902740731. The cubic root of 55290977 is about 380.9647163657.

The spelling of 55290977 in words is "fifty-five million, two hundred ninety thousand, nine hundred seventy-seven".