75448125 has 80 divisors (see below), whose sum is σ = 148452480. Its totient is φ = 37728000.

The previous prime is 75448117. The next prime is 75448127. The reversal of 75448125 is 52184457.

It is not a de Polignac number, because 75448125 - 2³ = 75448117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75448125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75448127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 286744 + ... + 287006.

It is an arithmetic number, because the mean of its divisors is an integer number (1855656).

Almost surely, 2^75448125 is an apocalyptic number.

75448125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75448125 is a deficient number, since it is larger than the sum of its proper divisors (73004355).

75448125 is a wasteful number, since it uses less digits than its factorization.

75448125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 288 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 75448125 is about 8686.0880147509. The cubic root of 75448125 is about 422.5545837069.

The spelling of 75448125 in words is "seventy-five million, four hundred forty-eight thousand, one hundred twenty-five".