75030305 has 32 divisors (see below), whose sum is σ = 105850368. Its totient is φ = 49996800.

The previous prime is 75030269. The next prime is 75030311. The reversal of 75030305 is 50303057.

It is not a de Polignac number, because 75030305 - 2⁸ = 75030049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241100 + ... + 241410.

It is an arithmetic number, because the mean of its divisors is an integer number (3307824).

Almost surely, 2^75030305 is an apocalyptic number.

It is an amenable number.

75030305 is a deficient number, since it is larger than the sum of its proper divisors (30820063).

75030305 is a wasteful number, since it uses less digits than its factorization.

75030305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 1575, while the sum is 23.

The square root of 75030305 is about 8662.0035211260. The cubic root of 75030305 is about 421.7731255065.

The spelling of 75030305 in words is "seventy-five million, thirty thousand, three hundred five".