75055105 has 4 divisors (see below), whose sum is σ = 90066132. Its totient is φ = 60044080.

The previous prime is 75055091. The next prime is 75055121. The reversal of 75055105 is 50155057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50155057 = 1031 ⋅48647.

It can be written as a sum of positive squares in 2 ways, for example, as 7929856 + 67125249 = 2816^2 + 8193^2 .

It is not a de Polignac number, because 75055105 - 2⁹ = 75054593 is a prime.

It is a super-2 number, since 2×75055105² = 11266537573122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7505506 + ... + 7505515.

It is an arithmetic number, because the mean of its divisors is an integer number (22516533).

It is a Proth number, since it is equal to 4581 ⋅ 2¹⁴ + 1 and 4581 < 2¹⁴.

Almost surely, 2^75055105 is an apocalyptic number.

It is an amenable number.

75055105 is a deficient number, since it is larger than the sum of its proper divisors (15011027).

75055105 is a wasteful number, since it uses less digits than its factorization.

75055105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011026.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 75055105 is about 8663.4349423309. The cubic root of 75055105 is about 421.8195903816.

It can be divided in two parts, 750 and 55105, that added together give a palindrome (55855).

The spelling of 75055105 in words is "seventy-five million, fifty-five thousand, one hundred five".