650616057 has 80 divisors (see below), whose sum is σ = 1216644352. Its totient is φ = 337322880.

The previous prime is 650616053. The next prime is 650616089. The reversal of 650616057 is 750616056.

It is a happy number.

It is not a de Polignac number, because 650616057 - 2² = 650616053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (650616053) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 448908 + ... + 450354.

Almost surely, 2^650616057 is an apocalyptic number.

It is an amenable number.

650616057 is a deficient number, since it is larger than the sum of its proper divisors (566028295).

650616057 is a wasteful number, since it uses less digits than its factorization.

650616057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 650616057 is about 25507.1765783671. The cubic root of 650616057 is about 866.5126869605.

Subtracting 650616057 from its reverse (750616056), we obtain a palindrome (99999999).

The spelling of 650616057 in words is "six hundred fifty million, six hundred sixteen thousand, fifty-seven".