53638730 has 16 divisors (see below), whose sum is σ = 97130880. Its totient is φ = 21326352.

The previous prime is 53638687. The next prime is 53638751. The reversal of 53638730 is 3783635.

53638730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53638730² = 5754226712025800, which contains 22 as substring.

It is an unprimeable number.

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, 14390 + ... + 17729.

It is an arithmetic number, because the mean of its divisors is an integer number (6070680).

Almost surely, 2^53638730 is an apocalyptic number.

53638730 is a deficient number, since it is larger than the sum of its proper divisors (43492150).

53638730 is a wasteful number, since it uses less digits than its factorization.

53638730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32293.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 53638730 is about 7323.8466668821. The cubic root of 53638730 is about 377.1315176938.

The spelling of 53638730 in words is "fifty-three million, six hundred thirty-eight thousand, seven hundred thirty".