50436625561 has 9 divisors (see below), whose sum is σ = 58673005461. Its totient is φ = 43230045852.

The previous prime is 50436625511. The next prime is 50436625601. The reversal of 50436625561 is 16552663405.

The square root of 50436625561 is 224581.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 50436625561 - 2¹³ = 50436617369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50436625501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1556026 + ... + 1588108.

It is an arithmetic number, because the mean of its divisors is an integer number (6519222829).

Almost surely, 2^50436625561 is an apocalyptic number.

50436625561 is the 224581-st square number.

50436625561 is the 112291-st centered octagonal number.

It is an amenable number.

50436625561 is a deficient number, since it is larger than the sum of its proper divisors (8236379900).

50436625561 is an frugal number, since it uses more digits than its factorization.

50436625561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64180 (or 32090 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 50436625561 in words is "fifty billion, four hundred thirty-six million, six hundred twenty-five thousand, five hundred sixty-one".