505602378 has 16 divisors (see below), whose sum is σ = 1123560960. Its totient is φ = 168534108.

The previous prime is 505602371. The next prime is 505602379. The reversal of 505602378 is 873206505.

505602378 is a `hidden beast` number, since 5 + 0 + 560 + 23 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (505602371) 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, 4681450 + ... + 4681557.

It is an arithmetic number, because the mean of its divisors is an integer number (70222560).

Almost surely, 2^505602378 is an apocalyptic number.

505602378 is an abundant number, since it is smaller than the sum of its proper divisors (617958582).

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

505602378 is a wasteful number, since it uses less digits than its factorization.

505602378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9363018 (or 9363012 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 505602378 is about 22485.6037944281. The cubic root of 505602378 is about 796.6539294856.

The spelling of 505602378 in words is "five hundred five million, six hundred two thousand, three hundred seventy-eight".