52000649 has 4 divisors (see below), whose sum is σ = 52015764. Its totient is φ = 51985536.

The previous prime is 52000639. The next prime is 52000673. The reversal of 52000649 is 94600025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 48511225 + 3489424 = 6965^2 + 1868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52000649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52000639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 10205.

It is an arithmetic number, because the mean of its divisors is an integer number (13003941).

Almost surely, 2^52000649 is an apocalyptic number.

It is an amenable number.

52000649 is a deficient number, since it is larger than the sum of its proper divisors (15115).

52000649 is an equidigital number, since it uses as much as digits as its factorization.

52000649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15114.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 52000649 is about 7211.1475508410. The cubic root of 52000649 is about 373.2526684956.

The spelling of 52000649 in words is "fifty-two million, six hundred forty-nine", and thus it is an aban number.