50460721 has 4 divisors (see below), whose sum is σ = 50496100. Its totient is φ = 50425344.

The previous prime is 50460719. The next prime is 50460731. The reversal of 50460721 is 12706405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12706405 = 5 ⋅2541281.

It can be written as a sum of positive squares in 2 ways, for example, as 31798321 + 18662400 = 5639^2 + 4320^2 .

It is a cyclic number.

It is not a de Polignac number, because 50460721 - 2¹ = 50460719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50460731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15456 + ... + 18433.

It is an arithmetic number, because the mean of its divisors is an integer number (12624025).

Almost surely, 2^50460721 is an apocalyptic number.

It is an amenable number.

50460721 is a deficient number, since it is larger than the sum of its proper divisors (35379).

50460721 is a wasteful number, since it uses less digits than its factorization.

50460721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35378.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 50460721 is about 7103.5710033757. The cubic root of 50460721 is about 369.5312325014.

The spelling of 50460721 in words is "fifty million, four hundred sixty thousand, seven hundred twenty-one".