75225412 has 6 divisors (see below), whose sum is σ = 131644478. Its totient is φ = 37612704.

The previous prime is 75225407. The next prime is 75225457. The reversal of 75225412 is 21452257.

It can be written as a sum of positive squares in only one way, i.e., 68128516 + 7096896 = 8254^2 + 2664^2 .

It is a super-2 number, since 2×75225412² = 11317725221139488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9403173 + ... + 9403180.

Almost surely, 2^75225412 is an apocalyptic number.

It is an amenable number.

75225412 is a deficient number, since it is larger than the sum of its proper divisors (56419066).

75225412 is a wasteful number, since it uses less digits than its factorization.

75225412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18806357 (or 18806355 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 75225412 is about 8673.2584419006. The cubic root of 75225412 is about 422.1383986361.

Adding to 75225412 its reverse (21452257), we get a palindrome (96677669).

The spelling of 75225412 in words is "seventy-five million, two hundred twenty-five thousand, four hundred twelve".