75378052 has 12 divisors (see below), whose sum is σ = 132460636. Its totient is φ = 37532160.

The previous prime is 75378041. The next prime is 75378077. The reversal of 75378052 is 25087357.

It can be written as a sum of positive squares in 2 ways, for example, as 22146436 + 53231616 = 4706^2 + 7296^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38133 + ... + 40060.

Almost surely, 2^75378052 is an apocalyptic number.

It is an amenable number.

75378052 is a deficient number, since it is larger than the sum of its proper divisors (57082584).

75378052 is a wasteful number, since it uses less digits than its factorization.

75378052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78438 (or 78436 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 75378052 is about 8682.0534437424. The cubic root of 75378052 is about 422.4237262963.

The spelling of 75378052 in words is "seventy-five million, three hundred seventy-eight thousand, fifty-two".