55050161 has 4 divisors (see below), whose sum is σ = 55176000. Its totient is φ = 54924324.

The previous prime is 55050143. The next prime is 55050209. The reversal of 55050161 is 16105055.

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 55050161 - 2¹⁸ = 54788017 is a prime.

It is a super-2 number, since 2×55050161² = 6061040452251842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55050361) 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, 62261 + ... + 63138.

It is an arithmetic number, because the mean of its divisors is an integer number (13794000).

Almost surely, 2^55050161 is an apocalyptic number.

It is an amenable number.

55050161 is a deficient number, since it is larger than the sum of its proper divisors (125839).

55050161 is a wasteful number, since it uses less digits than its factorization.

55050161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125838.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 55050161 is about 7419.5795702991. The cubic root of 55050161 is about 380.4108230068.

The spelling of 55050161 in words is "fifty-five million, fifty thousand, one hundred sixty-one".