78055803 has 48 divisors (see below), whose sum is σ = 133189056. Its totient is φ = 43130880.

The previous prime is 78055801. The next prime is 78055811. The reversal of 78055803 is 30855087.

It is a happy number.

78055803 is a `hidden beast` number, since 78 + 0 + 5 + 580 + 3 = 666.

It is not a de Polignac number, because 78055803 - 2¹ = 78055801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78055801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 323763 + ... + 324003.

It is an arithmetic number, because the mean of its divisors is an integer number (2774772).

Almost surely, 2^78055803 is an apocalyptic number.

78055803 is a deficient number, since it is larger than the sum of its proper divisors (55133253).

78055803 is a wasteful number, since it uses less digits than its factorization.

78055803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 78055803 is about 8834.9195242515. The cubic root of 78055803 is about 427.3677358348.

The spelling of 78055803 in words is "seventy-eight million, fifty-five thousand, eight hundred three".