75455225 has 12 divisors (see below), whose sum is σ = 94476096. Its totient is φ = 59776080.

The previous prime is 75455221. The next prime is 75455267. The reversal of 75455225 is 52255457.

It is not a de Polignac number, because 75455225 - 2² = 75455221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75455221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12077 + ... + 17226.

It is an arithmetic number, because the mean of its divisors is an integer number (7873008).

Almost surely, 2^75455225 is an apocalyptic number.

It is an amenable number.

75455225 is a deficient number, since it is larger than the sum of its proper divisors (19020871).

75455225 is a wasteful number, since it uses less digits than its factorization.

75455225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29416 (or 29411 counting only the distinct ones).

The product of its digits is 70000, while the sum is 35.

The square root of 75455225 is about 8686.4967046560. The cubic root of 75455225 is about 422.5678380386.

The spelling of 75455225 in words is "seventy-five million, four hundred fifty-five thousand, two hundred twenty-five".