52261665 has 8 divisors (see below), whose sum is σ = 83618688. Its totient is φ = 27872880.

The previous prime is 52261663. The next prime is 52261673. The reversal of 52261665 is 56616225.

It is a happy number.

52261665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52261665 - 2¹ = 52261663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52261661) by changing a digit.

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, 1742041 + ... + 1742070.

It is an arithmetic number, because the mean of its divisors is an integer number (10452336).

Almost surely, 2^52261665 is an apocalyptic number.

It is an amenable number.

52261665 is a deficient number, since it is larger than the sum of its proper divisors (31357023).

52261665 is a wasteful number, since it uses less digits than its factorization.

52261665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484119.

The product of its digits is 21600, while the sum is 33.

The square root of 52261665 is about 7229.2229872926. Note that the first 3 decimals coincide. The cubic root of 52261665 is about 373.8761374080.

The spelling of 52261665 in words is "fifty-two million, two hundred sixty-one thousand, six hundred sixty-five".