75559994 has 8 divisors (see below), whose sum is σ = 116403348. Its totient is φ = 36758880.

The previous prime is 75559961. The next prime is 75559997. The reversal of 75559994 is 49995557.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73702225 + 1857769 = 8585^2 + 1363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (75559997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510467 + ... + 510614.

Almost surely, 2^75559994 is an apocalyptic number.

75559994 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

75559994 is a deficient number, since it is larger than the sum of its proper divisors (40843354).

75559994 is a wasteful number, since it uses less digits than its factorization.

75559994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021120.

The product of its digits is 2551500, while the sum is 53.

The square root of 75559994 is about 8692.5251797162. The cubic root of 75559994 is about 422.7633249876.

The spelling of 75559994 in words is "seventy-five million, five hundred fifty-nine thousand, nine hundred ninety-four".