55050078 has 8 divisors (see below), whose sum is σ = 110100168. Its totient is φ = 18350024.

The previous prime is 55050071. The next prime is 55050089. The reversal of 55050078 is 87005055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

55050078 is an admirable number.

It is a super-2 number, since 2×55050078² = 6061022175612168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587501 + ... + 4587512.

It is an arithmetic number, because the mean of its divisors is an integer number (13762521).

Almost surely, 2^55050078 is an apocalyptic number.

55050078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55050078 is a wasteful number, since it uses less digits than its factorization.

55050078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175018.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 55050078 is about 7419.5739769882. The cubic root of 55050078 is about 380.4106318229.

The spelling of 55050078 in words is "fifty-five million, fifty thousand, seventy-eight".