641046550 has 24 divisors (see below), whose sum is σ = 1193251752. Its totient is φ = 256224000.

The previous prime is 641046503. The next prime is 641046587. The reversal of 641046550 is 55640146.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 74470 + ... + 82630.

It is an arithmetic number, because the mean of its divisors is an integer number (49718823).

Almost surely, 2^641046550 is an apocalyptic number.

641046550 is a deficient number, since it is larger than the sum of its proper divisors (552205202).

641046550 is a wasteful number, since it uses less digits than its factorization.

641046550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744 (or 9739 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 641046550 is about 25318.8970928830. The cubic root of 641046550 is about 862.2433542918.

Adding to 641046550 its reverse (55640146), we get a palindrome (696686696).

The spelling of 641046550 in words is "six hundred forty-one million, forty-six thousand, five hundred fifty".