75005255813 has 4 divisors (see below), whose sum is σ = 75159271200. Its totient is φ = 74851240428.

The previous prime is 75005255797. The next prime is 75005255827. The reversal of 75005255813 is 31855250057.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31855250057 = 3637 ⋅8758661.

It is a cyclic number.

It is not a de Polignac number, because 75005255813 - 2⁴ = 75005255797 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 (75002255813) 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, 77006963 + ... + 77007936.

It is an arithmetic number, because the mean of its divisors is an integer number (18789817800).

Almost surely, 2^75005255813 is an apocalyptic number.

It is an amenable number.

75005255813 is a deficient number, since it is larger than the sum of its proper divisors (154015387).

75005255813 is a wasteful number, since it uses less digits than its factorization.

75005255813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154015386.

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 75005255813 in words is "seventy-five billion, five million, two hundred fifty-five thousand, eight hundred thirteen".