76506505 has 8 divisors (see below), whose sum is σ = 93313224. Its totient is φ = 60201600.

The previous prime is 76506473. The next prime is 76506517. The reversal of 76506505 is 50560567.

It can be written as a sum of positive squares in 4 ways, for example, as 9217296 + 67289209 = 3036^2 + 8203^2 .

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

It is not a de Polignac number, because 76506505 - 2⁵ = 76506473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125116 + ... + 125725.

It is an arithmetic number, because the mean of its divisors is an integer number (11664153).

Almost surely, 2^76506505 is an apocalyptic number.

It is an amenable number.

76506505 is a deficient number, since it is larger than the sum of its proper divisors (16806719).

76506505 is a wasteful number, since it uses less digits than its factorization.

76506505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250907.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 76506505 is about 8746.7997004619. The cubic root of 76506505 is about 424.5212694838.

The spelling of 76506505 in words is "seventy-six million, five hundred six thousand, five hundred five".