641610052 has 24 divisors (see below), whose sum is σ = 1154061216. Its totient is φ = 311945088.

The previous prime is 641610049. The next prime is 641610061. The reversal of 641610052 is 250016146.

It is a junction number, because it is equal to n+sod(n) for n = 641609999 and 641610026.

It is an unprimeable number.

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, 30828 + ... + 47260.

It is an arithmetic number, because the mean of its divisors is an integer number (48085884).

Almost surely, 2^641610052 is an apocalyptic number.

It is an amenable number.

641610052 is a deficient number, since it is larger than the sum of its proper divisors (512451164).

641610052 is a wasteful number, since it uses less digits than its factorization.

641610052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16707 (or 16705 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 641610052 is about 25330.0227398240. The cubic root of 641610052 is about 862.4959275030.

Adding to 641610052 its reverse (250016146), we get a palindrome (891626198).

The spelling of 641610052 in words is "six hundred forty-one million, six hundred ten thousand, fifty-two".