53406784 has 28 divisors (see below), whose sum is σ = 106294428. Its totient is φ = 26624000.

The previous prime is 53406779. The next prime is 53406823. The reversal of 53406784 is 48760435.

It can be written as a sum of positive squares in 2 ways, for example, as 40960000 + 12446784 = 6400^2 + 3528^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24624 + ... + 26704.

Almost surely, 2^53406784 is an apocalyptic number.

It is an amenable number.

53406784 is a deficient number, since it is larger than the sum of its proper divisors (52887644).

53406784 is a wasteful number, since it uses less digits than its factorization.

53406784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 53406784 is about 7307.9945265442. The cubic root of 53406784 is about 376.5871315958.

The spelling of 53406784 in words is "fifty-three million, four hundred six thousand, seven hundred eighty-four".