750520105 has 4 divisors (see below), whose sum is σ = 900624132. Its totient is φ = 600416080.

The previous prime is 750520093. The next prime is 750520139. The reversal of 750520105 is 501025057.

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: 501025057 = 13 ⋅38540389.

It can be written as a sum of positive squares in 2 ways, for example, as 492307344 + 258212761 = 22188^2 + 16069^2 .

It is not a de Polignac number, because 750520105 - 2⁵ = 750520073 is a prime.

It is a super-2 number, since 2×750520105² = 1126560856018422050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 750520105.

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, 75052006 + ... + 75052015.

It is an arithmetic number, because the mean of its divisors is an integer number (225156033).

Almost surely, 2^750520105 is an apocalyptic number.

It is an amenable number.

750520105 is a deficient number, since it is larger than the sum of its proper divisors (150104027).

750520105 is a wasteful number, since it uses less digits than its factorization.

750520105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150104026.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 750520105 is about 27395.6220042546. The cubic root of 750520105 is about 908.7702686659.

The spelling of 750520105 in words is "seven hundred fifty million, five hundred twenty thousand, one hundred five".