75061 has 4 divisors (see below), whose sum is σ = 85792. Its totient is φ = 64332.

The previous prime is 75041. The next prime is 75079. The reversal of 75061 is 16057.

75061 = 20² + 21² + ... + 61².

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 75061 - 2⁵ = 75029 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75011) 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, 5355 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (21448).

2⁷⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

75061 is a deficient number, since it is larger than the sum of its proper divisors (10731).

75061 is a wasteful number, since it uses less digits than its factorization.

75061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10730.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 75061 is about 273.9726263699. The cubic root of 75061 is about 42.1830633652.

The spelling of 75061 in words is "seventy-five thousand, sixty-one".