75275999 has 4 divisors (see below), whose sum is σ = 76877664. Its totient is φ = 73674336.

The previous prime is 75275989. The next prime is 75276001. The reversal of 75275999 is 99957257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99957257 = 1439 ⋅69463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75275999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75275999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75275939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800762 + ... + 800855.

It is an arithmetic number, because the mean of its divisors is an integer number (19219416).

Almost surely, 2^75275999 is an apocalyptic number.

75275999 is a deficient number, since it is larger than the sum of its proper divisors (1601665).

75275999 is a wasteful number, since it uses less digits than its factorization.

75275999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601664.

The product of its digits is 1786050, while the sum is 53.

The square root of 75275999 is about 8676.1742144796. The cubic root of 75275999 is about 422.2330028821.

The spelling of 75275999 in words is "seventy-five million, two hundred seventy-five thousand, nine hundred ninety-nine".