75448385 has 8 divisors (see below), whose sum is σ = 91146600. Its totient is φ = 59953024.

The previous prime is 75448367. The next prime is 75448393. The reversal of 75448385 is 58384457.

It can be written as a sum of positive squares in 4 ways, for example, as 11895601 + 63552784 = 3449^2 + 7972^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 75448385 - 2¹⁴ = 75432001 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49892 + ... + 51381.

It is an arithmetic number, because the mean of its divisors is an integer number (11393325).

Almost surely, 2^75448385 is an apocalyptic number.

It is an amenable number.

75448385 is a deficient number, since it is larger than the sum of its proper divisors (15698215).

75448385 is a wasteful number, since it uses less digits than its factorization.

75448385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101427.

The product of its digits is 537600, while the sum is 44.

The square root of 75448385 is about 8686.1029811993. The cubic root of 75448385 is about 422.5550690914. Note that the first 3 decimals are identical.

The spelling of 75448385 in words is "seventy-five million, four hundred forty-eight thousand, three hundred eighty-five".