75575500031 has 4 divisors (see below), whose sum is σ = 75781428192. Its totient is φ = 75369571872.

The previous prime is 75575499991. The next prime is 75575500037. The reversal of 75575500031 is 13000557557.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13000557557 = 13 ⋅1000042889.

It is a cyclic number.

It is not a de Polignac number, because 75575500031 - 2¹⁰ = 75575499007 is a prime.

It is a super-2 number, since 2×75575500031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75575500037) 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, 102963530 + ... + 102964263.

It is an arithmetic number, because the mean of its divisors is an integer number (18945357048).

Almost surely, 2^75575500031 is an apocalyptic number.

75575500031 is a deficient number, since it is larger than the sum of its proper divisors (205928161).

75575500031 is a wasteful number, since it uses less digits than its factorization.

75575500031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205928160.

The product of its (nonzero) digits is 91875, while the sum is 38.

The spelling of 75575500031 in words is "seventy-five billion, five hundred seventy-five million, five hundred thousand, thirty-one".