650636542 has 16 divisors (see below), whose sum is σ = 994705920. Its totient is φ = 319092568.

The previous prime is 650636507. The next prime is 650636549. The reversal of 650636542 is 245636056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650636549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49203 + ... + 61009.

It is an arithmetic number, because the mean of its divisors is an integer number (62169120).

Almost surely, 2^650636542 is an apocalyptic number.

650636542 is a deficient number, since it is larger than the sum of its proper divisors (344069378).

650636542 is a wasteful number, since it uses less digits than its factorization.

650636542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12335.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 650636542 is about 25507.5781288620. The cubic root of 650636542 is about 866.5217810726.

The spelling of 650636542 in words is "six hundred fifty million, six hundred thirty-six thousand, five hundred forty-two".