949995561 has 8 divisors (see below), whose sum is σ = 1269547840. Its totient is φ = 631886832.

The previous prime is 949995551. The next prime is 949995577. The reversal of 949995561 is 165599949.

949995561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 949995561 - 2¹⁰ = 949994537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (949995551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359350 + ... + 361983.

It is an arithmetic number, because the mean of its divisors is an integer number (158693480).

Almost surely, 2^949995561 is an apocalyptic number.

It is an amenable number.

949995561 is a deficient number, since it is larger than the sum of its proper divisors (319552279).

949995561 is a wasteful number, since it uses less digits than its factorization.

949995561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721775.

The product of its digits is 3936600, while the sum is 57.

The square root of 949995561 is about 30821.9980046719. The cubic root of 949995561 is about 983.0460413495.

The spelling of 949995561 in words is "nine hundred forty-nine million, nine hundred ninety-five thousand, five hundred sixty-one".