75139033225 has 27 divisors (see below), whose sum is σ = 94592174229. Its totient is φ = 59208840000.

The previous prime is 75139033223. The next prime is 75139033241. The reversal of 75139033225 is 52233093157.

The square root of 75139033225 is 274115.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 411156729 + 74727876496 = 20277^2 + 273364^2 .

It is not a de Polignac number, because 75139033225 - 2¹ = 75139033223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75139033223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 100051600 + ... + 100052350.

Almost surely, 2^75139033225 is an apocalyptic number.

75139033225 is the 274115-th square number.

75139033225 is the 137058-th centered octagonal number.

It is an amenable number.

75139033225 is a deficient number, since it is larger than the sum of its proper divisors (19453141004).

75139033225 is an frugal number, since it uses more digits than its factorization.

75139033225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 40.

The spelling of 75139033225 in words is "seventy-five billion, one hundred thirty-nine million, thirty-three thousand, two hundred twenty-five".