650455213 has 4 divisors (see below), whose sum is σ = 651094560. Its totient is φ = 649815868.

The previous prime is 650455199. The next prime is 650455277. The reversal of 650455213 is 312554056.

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 a de Polignac number, because none of the positive numbers 2^k-650455213 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 (650455613) 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, 318145 + ... + 320182.

It is an arithmetic number, because the mean of its divisors is an integer number (162773640).

Almost surely, 2^650455213 is an apocalyptic number.

It is an amenable number.

650455213 is a deficient number, since it is larger than the sum of its proper divisors (639347).

650455213 is a wasteful number, since it uses less digits than its factorization.

650455213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639346.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 650455213 is about 25504.0234668964. The cubic root of 650455213 is about 866.4412752311.

The spelling of 650455213 in words is "six hundred fifty million, four hundred fifty-five thousand, two hundred thirteen".