76256505 has 32 divisors (see below), whose sum is σ = 145998720. Its totient is φ = 37540800.

The previous prime is 76256491. The next prime is 76256507. The reversal of 76256505 is 50565267.

It is not a de Polignac number, because 76256505 - 2²¹ = 74159353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76256505.

It is not an unprimeable number, because it can be changed into a prime (76256507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19971 + ... + 23480.

It is an arithmetic number, because the mean of its divisors is an integer number (4562460).

Almost surely, 2^76256505 is an apocalyptic number.

It is an amenable number.

76256505 is a deficient number, since it is larger than the sum of its proper divisors (69742215).

76256505 is a wasteful number, since it uses less digits than its factorization.

76256505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43478 (or 43472 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 76256505 is about 8732.4970655592. The cubic root of 76256505 is about 424.0583627535.

The spelling of 76256505 in words is "seventy-six million, two hundred fifty-six thousand, five hundred five".