75798655 has 4 divisors (see below), whose sum is σ = 90958392. Its totient is φ = 60638920.

The previous prime is 75798649. The next prime is 75798659. The reversal of 75798655 is 55689757.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55689757 = 331 ⋅168247.

It is not a de Polignac number, because 75798655 - 2³ = 75798647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75798659) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7579861 + ... + 7579870.

It is an arithmetic number, because the mean of its divisors is an integer number (22739598).

Almost surely, 2^75798655 is an apocalyptic number.

75798655 is a deficient number, since it is larger than the sum of its proper divisors (15159737).

75798655 is a wasteful number, since it uses less digits than its factorization.

75798655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15159736.

The product of its digits is 2646000, while the sum is 52.

The square root of 75798655 is about 8706.2423007863. The cubic root of 75798655 is about 423.2079653704.

The spelling of 75798655 in words is "seventy-five million, seven hundred ninety-eight thousand, six hundred fifty-five".