75077225 has 12 divisors (see below), whose sum is σ = 93340380. Its totient is φ = 59904000.

The previous prime is 75077209. The next prime is 75077237. The reversal of 75077225 is 52277057.

It can be written as a sum of positive squares in 6 ways, for example, as 3031081 + 72046144 = 1741^2 + 8488^2 .

It is not a de Polignac number, because 75077225 - 2⁴ = 75077209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6281 + ... + 13769.

It is an arithmetic number, because the mean of its divisors is an integer number (7778365).

Almost surely, 2^75077225 is an apocalyptic number.

It is an amenable number.

75077225 is a deficient number, since it is larger than the sum of its proper divisors (18263155).

75077225 is a wasteful number, since it uses less digits than its factorization.

75077225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900 (or 7895 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 75077225 is about 8664.7114781740. The cubic root of 75077225 is about 421.8610254173.

The spelling of 75077225 in words is "seventy-five million, seventy-seven thousand, two hundred twenty-five".