75533998 has 8 divisors (see below), whose sum is σ = 113350680. Its totient is φ = 37750440.

The previous prime is 75533977. The next prime is 75533999. The reversal of 75533998 is 89933557.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75533999) 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, 1453 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (14168835).

Almost surely, 2^75533998 is an apocalyptic number.

75533998 is a deficient number, since it is larger than the sum of its proper divisors (37816682).

75533998 is a wasteful number, since it uses less digits than its factorization.

75533998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16562.

The product of its digits is 1020600, while the sum is 49.

The square root of 75533998 is about 8691.0297433618. The cubic root of 75533998 is about 422.7148362949.

The spelling of 75533998 in words is "seventy-five million, five hundred thirty-three thousand, nine hundred ninety-eight".