52161705 has 16 divisors (see below), whose sum is σ = 92732160. Its totient is φ = 27819504.

The previous prime is 52161701. The next prime is 52161719. The reversal of 52161705 is 50716125.

It is not a de Polignac number, because 52161705 - 2² = 52161701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (52161701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193057 + ... + 193326.

It is an arithmetic number, because the mean of its divisors is an integer number (5795760).

Almost surely, 2^52161705 is an apocalyptic number.

It is an amenable number.

52161705 is a deficient number, since it is larger than the sum of its proper divisors (40570455).

52161705 is a wasteful number, since it uses less digits than its factorization.

52161705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386397 (or 386391 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 52161705 is about 7222.3060721628. The cubic root of 52161705 is about 373.6376164233.

It can be divided in two parts, 521 and 61705, that added together give a palindrome (62226).

The spelling of 52161705 in words is "fifty-two million, one hundred sixty-one thousand, seven hundred five".