650611061 has 4 divisors (see below), whose sum is σ = 650968224. Its totient is φ = 650253900.

The previous prime is 650611019. The next prime is 650611141. The reversal of 650611061 is 160116056.

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 650611061 - 2²⁶ = 583502197 is a prime.

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 650611061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650691061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175835 + ... + 179496.

It is an arithmetic number, because the mean of its divisors is an integer number (162742056).

Almost surely, 2^650611061 is an apocalyptic number.

It is an amenable number.

650611061 is a deficient number, since it is larger than the sum of its proper divisors (357163).

650611061 is a wasteful number, since it uses less digits than its factorization.

650611061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357162.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 650611061 is about 25507.0786449566. The cubic root of 650611061 is about 866.5104690070.

The spelling of 650611061 in words is "six hundred fifty million, six hundred eleven thousand, sixty-one".