78055330 has 32 divisors (see below), whose sum is σ = 155240064. Its totient is φ = 28106496.

The previous prime is 78055301. The next prime is 78055409. The reversal of 78055330 is 3355087.

It is a junction number, because it is equal to n+sod(n) for n = 78055292 and 78055301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6072 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (4851252).

Almost surely, 2^78055330 is an apocalyptic number.

78055330 is a deficient number, since it is larger than the sum of its proper divisors (77184734).

78055330 is a wasteful number, since it uses less digits than its factorization.

78055330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 78055330 is about 8834.8927554329. The cubic root of 78055330 is about 427.3668725834.

The spelling of 78055330 in words is "seventy-eight million, fifty-five thousand, three hundred thirty".