50561571 has 4 divisors (see below), whose sum is σ = 67415432. Its totient is φ = 33707712.

The previous prime is 50561557. The next prime is 50561579. The reversal of 50561571 is 17516505.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50561571 - 2¹⁰ = 50560547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50561579) 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, 8426926 + ... + 8426931.

It is an arithmetic number, because the mean of its divisors is an integer number (16853858).

Almost surely, 2^50561571 is an apocalyptic number.

50561571 is a deficient number, since it is larger than the sum of its proper divisors (16853861).

50561571 is a wasteful number, since it uses less digits than its factorization.

50561571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16853860.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 50561571 is about 7110.6660025626. Note that the first 3 decimals coincide. The cubic root of 50561571 is about 369.7772484412. Note that the first 3 decimals are identical.

The spelling of 50561571 in words is "fifty million, five hundred sixty-one thousand, five hundred seventy-one".