75056161 has 4 divisors (see below), whose sum is σ = 75226032. Its totient is φ = 74886292.

The previous prime is 75056143. The next prime is 75056167. The reversal of 75056161 is 16165057.

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 75056161 - 2⁵ = 75056129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75056167) 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, 84271 + ... + 85156.

It is an arithmetic number, because the mean of its divisors is an integer number (18806508).

Almost surely, 2^75056161 is an apocalyptic number.

It is an amenable number.

75056161 is a deficient number, since it is larger than the sum of its proper divisors (169871).

75056161 is a wasteful number, since it uses less digits than its factorization.

75056161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169870.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 75056161 is about 8663.4958879196. The cubic root of 75056161 is about 421.8215686588.

The spelling of 75056161 in words is "seventy-five million, fifty-six thousand, one hundred sixty-one".