53644730 has 8 divisors (see below), whose sum is σ = 96560532. Its totient is φ = 21457888.

The previous prime is 53644729. The next prime is 53644739. The reversal of 53644730 is 3744635.

It can be written as a sum of positive squares in 2 ways, for example, as 52519009 + 1125721 = 7247^2 + 1061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53644739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682227 + ... + 2682246.

Almost surely, 2^53644730 is an apocalyptic number.

53644730 is a deficient number, since it is larger than the sum of its proper divisors (42915802).

53644730 is a wasteful number, since it uses less digits than its factorization.

53644730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364480.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 53644730 is about 7324.2562762372. The cubic root of 53644730 is about 377.1455790803.

The spelling of 53644730 in words is "fifty-three million, six hundred forty-four thousand, seven hundred thirty".