75125505 has 64 divisors (see below), whose sum is σ = 151216128. Its totient is φ = 31000320.

The previous prime is 75125497. The next prime is 75125509. The reversal of 75125505 is 50552157.

It is not a de Polignac number, because 75125505 - 2³ = 75125497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75125509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63570 + ... + 64740.

It is an arithmetic number, because the mean of its divisors is an integer number (2362752).

Almost surely, 2^75125505 is an apocalyptic number.

It is an amenable number.

75125505 is an abundant number, since it is smaller than the sum of its proper divisors (76090623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75125505 is a wasteful number, since it uses less digits than its factorization.

75125505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 75125505 is about 8667.4970435530. The cubic root of 75125505 is about 421.9514349299.

The spelling of 75125505 in words is "seventy-five million, one hundred twenty-five thousand, five hundred five".