75468538 has 4 divisors (see below), whose sum is σ = 113202810. Its totient is φ = 37734268.

The previous prime is 75468517. The next prime is 75468557. The reversal of 75468538 is 83586457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83586457 = 103 ⋅811519.

It can be written as a sum of positive squares in only one way, i.e., 75116889 + 351649 = 8667^2 + 593^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18867133 + ... + 18867136.

Almost surely, 2^75468538 is an apocalyptic number.

75468538 is a deficient number, since it is larger than the sum of its proper divisors (37734272).

75468538 is a wasteful number, since it uses less digits than its factorization.

75468538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37734271.

The product of its digits is 806400, while the sum is 46.

The square root of 75468538 is about 8687.2629751838. The cubic root of 75468538 is about 422.5926886031.

The spelling of 75468538 in words is "seventy-five million, four hundred sixty-eight thousand, five hundred thirty-eight".