75245399 has 8 divisors (see below), whose sum is σ = 77113872. Its totient is φ = 73382400.

The previous prime is 75245389. The next prime is 75245411. The reversal of 75245399 is 99354257.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75245399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75245369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46199 + ... + 47799.

It is an arithmetic number, because the mean of its divisors is an integer number (9639234).

Almost surely, 2^75245399 is an apocalyptic number.

75245399 is a deficient number, since it is larger than the sum of its proper divisors (1868473).

75245399 is a wasteful number, since it uses less digits than its factorization.

75245399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its digits is 340200, while the sum is 44.

The square root of 75245399 is about 8674.4105851637. The cubic root of 75245399 is about 422.1757819831.

The spelling of 75245399 in words is "seventy-five million, two hundred forty-five thousand, three hundred ninety-nine".