53749765 has 8 divisors (see below), whose sum is σ = 67894560. Its totient is φ = 40736592.

The previous prime is 53749747. The next prime is 53749777. The reversal of 53749765 is 56794735.

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

It is a cyclic number.

It is not a de Polignac number, because 53749765 - 2¹⁹ = 53225477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282799 + ... + 282988.

It is an arithmetic number, because the mean of its divisors is an integer number (8486820).

Almost surely, 2^53749765 is an apocalyptic number.

It is an amenable number.

53749765 is a deficient number, since it is larger than the sum of its proper divisors (14144795).

53749765 is a wasteful number, since it uses less digits than its factorization.

53749765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565811.

The product of its digits is 793800, while the sum is 46.

The square root of 53749765 is about 7331.4231224231. The cubic root of 53749765 is about 377.3915657158.

The spelling of 53749765 in words is "fifty-three million, seven hundred forty-nine thousand, seven hundred sixty-five".