50556161 has 4 divisors (see below), whose sum is σ = 51631872. Its totient is φ = 49480452.

The previous prime is 50556127. The next prime is 50556167. The reversal of 50556161 is 16165505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50556161 - 2¹⁰ = 50555137 is a prime.

It is a super-3 number, since 3×50556161³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50556167) 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, 537785 + ... + 537878.

It is an arithmetic number, because the mean of its divisors is an integer number (12907968).

Almost surely, 2^50556161 is an apocalyptic number.

It is an amenable number.

50556161 is a deficient number, since it is larger than the sum of its proper divisors (1075711).

50556161 is a wasteful number, since it uses less digits than its factorization.

50556161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075710.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 50556161 is about 7110.2855779497. The cubic root of 50556161 is about 369.7640594637.

The spelling of 50556161 in words is "fifty million, five hundred fifty-six thousand, one hundred sixty-one".