75577225 has 24 divisors (see below), whose sum is σ = 97708032. Its totient is φ = 57926400.

The previous prime is 75577211. The next prime is 75577237. The reversal of 75577225 is 52277557.

It is a happy number.

It is not a de Polignac number, because 75577225 - 2⁷ = 75577097 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 87144 + ... + 88006.

It is an arithmetic number, because the mean of its divisors is an integer number (4071168).

Almost surely, 2^75577225 is an apocalyptic number.

It is an amenable number.

75577225 is a deficient number, since it is larger than the sum of its proper divisors (22130807).

75577225 is a wasteful number, since it uses less digits than its factorization.

75577225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1012 counting only the distinct ones).

The product of its digits is 171500, while the sum is 40.

The square root of 75577225 is about 8693.5162621347. The cubic root of 75577225 is about 422.7954587523.

The spelling of 75577225 in words is "seventy-five million, five hundred seventy-seven thousand, two hundred twenty-five".