52187705 has 16 divisors (see below), whose sum is σ = 66594960. Its totient is φ = 39124992.

The previous prime is 52187701. The next prime is 52187749. The reversal of 52187705 is 50778125.

It can be written as a sum of positive squares in 8 ways, for example, as 3523129 + 48664576 = 1877^2 + 6976^2 .

It is a cyclic number.

It is not a de Polignac number, because 52187705 - 2² = 52187701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52187701) 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, 20651 + ... + 23039.

It is an arithmetic number, because the mean of its divisors is an integer number (4162185).

Almost surely, 2^52187705 is an apocalyptic number.

It is an amenable number.

52187705 is a deficient number, since it is larger than the sum of its proper divisors (14407255).

52187705 is a wasteful number, since it uses less digits than its factorization.

52187705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 52187705 is about 7224.1058270211. The cubic root of 52187705 is about 373.6996859971.

The spelling of 52187705 in words is "fifty-two million, one hundred eighty-seven thousand, seven hundred five".