78055030 has 8 divisors (see below), whose sum is σ = 140499072. Its totient is φ = 31222008.

The previous prime is 78055013. The next prime is 78055039. The reversal of 78055030 is 3055087.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78055030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78055039) 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, 3902742 + ... + 3902761.

It is an arithmetic number, because the mean of its divisors is an integer number (17562384).

Almost surely, 2^78055030 is an apocalyptic number.

78055030 is a deficient number, since it is larger than the sum of its proper divisors (62444042).

78055030 is a wasteful number, since it uses less digits than its factorization.

78055030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805510.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 78055030 is about 8834.8757772818. The cubic root of 78055030 is about 427.3663250649.

The spelling of 78055030 in words is "seventy-eight million, fifty-five thousand, thirty".