1650470953 has 4 divisors (see below), whose sum is σ = 1650615120. Its totient is φ = 1650326788.

The previous prime is 1650470917. The next prime is 1650470977. The reversal of 1650470953 is 3590740561.

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 1650470953 - 2¹⁷ = 1650339881 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1650470153) 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, 53275 + ... + 78352.

It is an arithmetic number, because the mean of its divisors is an integer number (412653780).

Almost surely, 2^1650470953 is an apocalyptic number.

It is an amenable number.

1650470953 is a deficient number, since it is larger than the sum of its proper divisors (144167).

1650470953 is a wasteful number, since it uses less digits than its factorization.

1650470953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144166.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 1650470953 is about 40625.9886402780. The cubic root of 1650470953 is about 1181.7781658395.

The spelling of 1650470953 in words is "one billion, six hundred fifty million, four hundred seventy thousand, nine hundred fifty-three".