75534212 has 36 divisors (see below), whose sum is σ = 148109220. Its totient is φ = 33651072.

The previous prime is 75534157. The next prime is 75534227. The reversal of 75534212 is 21243557.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 87616 + 75446596 = 296^2 + 8686^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 17678 + ... + 21530.

It is an arithmetic number, because the mean of its divisors is an integer number (4114145).

Almost surely, 2^75534212 is an apocalyptic number.

It is an amenable number.

75534212 is a deficient number, since it is larger than the sum of its proper divisors (72575008).

75534212 is a wasteful number, since it uses less digits than its factorization.

75534212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3897 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 75534212 is about 8691.0420548977. The cubic root of 75534212 is about 422.7152355009.

Adding to 75534212 its reverse (21243557), we get a palindrome (96777769).

The spelling of 75534212 in words is "seventy-five million, five hundred thirty-four thousand, two hundred twelve".