53644366 has 4 divisors (see below), whose sum is σ = 80466552. Its totient is φ = 26822182.

The previous prime is 53644363. The next prime is 53644379. The reversal of 53644366 is 66344635.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13411090 + ... + 13411093.

It is an arithmetic number, because the mean of its divisors is an integer number (20116638).

Almost surely, 2^53644366 is an apocalyptic number.

53644366 is a deficient number, since it is larger than the sum of its proper divisors (26822186).

53644366 is a wasteful number, since it uses less digits than its factorization.

53644366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26822185.

The product of its digits is 155520, while the sum is 37.

The square root of 53644366 is about 7324.2314272557. The cubic root of 53644366 is about 377.1447260528.

It can be divided in two parts, 5364 and 4366, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 53644366 in words is "fifty-three million, six hundred forty-four thousand, three hundred sixty-six".