75645452 has 12 divisors (see below), whose sum is σ = 132606936. Its totient is φ = 37757760.

The previous prime is 75645443. The next prime is 75645457. The reversal of 75645452 is 25454657.

It is not an unprimeable number, because it can be changed into a prime (75645457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13574 + ... + 18317.

It is an arithmetic number, because the mean of its divisors is an integer number (11050578).

Almost surely, 2^75645452 is an apocalyptic number.

It is an amenable number.

75645452 is a deficient number, since it is larger than the sum of its proper divisors (56961484).

75645452 is a wasteful number, since it uses less digits than its factorization.

75645452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32488 (or 32486 counting only the distinct ones).

The product of its digits is 168000, while the sum is 38.

The square root of 75645452 is about 8697.4393932927. The cubic root of 75645452 is about 422.9226460537.

The spelling of 75645452 in words is "seventy-five million, six hundred forty-five thousand, four hundred fifty-two".