2450956721 has 8 divisors (see below), whose sum is σ = 2536871400. Its totient is φ = 2365135360.

The previous prime is 2450956687. The next prime is 2450956723. The reversal of 2450956721 is 1276590542.

It can be written as a sum of positive squares in 4 ways, for example, as 2686321 + 2448270400 = 1639^2 + 49480^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2450956721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2450956723) 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 7 ways as a sum of consecutive naturals, for example, 32411 + ... + 77151.

It is an arithmetic number, because the mean of its divisors is an integer number (317108925).

Almost surely, 2^2450956721 is an apocalyptic number.

It is an amenable number.

2450956721 is a deficient number, since it is larger than the sum of its proper divisors (85914679).

2450956721 is a wasteful number, since it uses less digits than its factorization.

2450956721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46659.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2450956721 is about 49507.1380812909. The cubic root of 2450956721 is about 1348.2752039688.

The spelling of 2450956721 in words is "two billion, four hundred fifty million, nine hundred fifty-six thousand, seven hundred twenty-one".