53777904 has 40 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 16982208.

The previous prime is 53777903. The next prime is 53777921. The reversal of 53777904 is 40977735.

53777904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53777903) 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, 28572 + ... + 30395.

It is an arithmetic number, because the mean of its divisors is an integer number (3656016).

Almost surely, 2^53777904 is an apocalyptic number.

It is an amenable number.

53777904 is an abundant number, since it is smaller than the sum of its proper divisors (92462736).

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

53777904 is a wasteful number, since it uses less digits than its factorization.

53777904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58997 (or 58991 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 53777904 is about 7333.3419393889. The cubic root of 53777904 is about 377.4574113906.

The spelling of 53777904 in words is "fifty-three million, seven hundred seventy-seven thousand, nine hundred four".