75515 has 8 divisors (see below), whose sum is σ = 98928. Its totient is φ = 54880.

The previous prime is 75511. The next prime is 75521. The reversal of 75515 is 51557.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75515 - 2² = 75511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632 + ... + 741.

It is an arithmetic number, because the mean of its divisors is an integer number (12366).

2⁷⁵⁵¹⁵ is an apocalyptic number.

75515 is a deficient number, since it is larger than the sum of its proper divisors (23413).

75515 is a wasteful number, since it uses less digits than its factorization.

75515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its digits is 875, while the sum is 23.

The square root of 75515 is about 274.7999272198. The cubic root of 75515 is about 42.2679393492.

It can be divided in two parts, 755 and 15, that multiplied together give a triangular number (11325 = T₁₅₀).

The spelling of 75515 in words is "seventy-five thousand, five hundred fifteen".