650162521 has 4 divisors (see below), whose sum is σ = 653078272. Its totient is φ = 647246772.

The previous prime is 650162519. The next prime is 650162531. The reversal of 650162521 is 125261056.

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.

It is a cyclic number.

It is not a de Polignac number, because 650162521 - 2¹ = 650162519 is a prime.

It is a super-2 number, since 2×650162521² = 845422607426150882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 650162521.

It is not an unprimeable number, because it can be changed into a prime (650162531) 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, 1457541 + ... + 1457986.

It is an arithmetic number, because the mean of its divisors is an integer number (163269568).

Almost surely, 2^650162521 is an apocalyptic number.

It is an amenable number.

650162521 is a deficient number, since it is larger than the sum of its proper divisors (2915751).

650162521 is a wasteful number, since it uses less digits than its factorization.

650162521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915750.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 650162521 is about 25498.2846677968. The cubic root of 650162521 is about 866.3112952455.

The spelling of 650162521 in words is "six hundred fifty million, one hundred sixty-two thousand, five hundred twenty-one".