53778476 has 6 divisors (see below), whose sum is σ = 94112340. Its totient is φ = 26889236.

The previous prime is 53778469. The next prime is 53778523. The reversal of 53778476 is 67487735.

It is a self number, because there is not a number n which added to its sum of digits gives 53778476.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722306 + ... + 6722313.

It is an arithmetic number, because the mean of its divisors is an integer number (15685390).

Almost surely, 2^53778476 is an apocalyptic number.

It is an amenable number.

53778476 is a deficient number, since it is larger than the sum of its proper divisors (40333864).

53778476 is a wasteful number, since it uses less digits than its factorization.

53778476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444623 (or 13444621 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The square root of 53778476 is about 7333.3809392394. The cubic root of 53778476 is about 377.4587496408.

The spelling of 53778476 in words is "fifty-three million, seven hundred seventy-eight thousand, four hundred seventy-six".