53720336 has 10 divisors (see below), whose sum is σ = 104083182. Its totient is φ = 26860160.

The previous prime is 53720309. The next prime is 53720347. The reversal of 53720336 is 63302735.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 430336 = 7300^2 + 656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53720299 and 53720308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1678745 + ... + 1678776.

Almost surely, 2^53720336 is an apocalyptic number.

It is an amenable number.

53720336 is a deficient number, since it is larger than the sum of its proper divisors (50362846).

53720336 is a wasteful number, since it uses less digits than its factorization.

53720336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357529 (or 3357523 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 53720336 is about 7329.4158020950. The cubic root of 53720336 is about 377.3226768318.

The spelling of 53720336 in words is "fifty-three million, seven hundred twenty thousand, three hundred thirty-six".