650757157 has 4 divisors (see below), whose sum is σ = 650830176. Its totient is φ = 650684140.

The previous prime is 650757139. The next prime is 650757181. The reversal of 650757157 is 751757056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650757157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650757257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20923 + ... + 41704.

It is an arithmetic number, because the mean of its divisors is an integer number (162707544).

Almost surely, 2^650757157 is an apocalyptic number.

It is an amenable number.

650757157 is a deficient number, since it is larger than the sum of its proper divisors (73019).

650757157 is a wasteful number, since it uses less digits than its factorization.

650757157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73018.

The product of its (nonzero) digits is 257250, while the sum is 43.

The square root of 650757157 is about 25509.9423166733. The cubic root of 650757157 is about 866.5753230325.

The spelling of 650757157 in words is "six hundred fifty million, seven hundred fifty-seven thousand, one hundred fifty-seven".