75321011 has 8 divisors (see below), whose sum is σ = 77465280. Its totient is φ = 73236024.

The previous prime is 75321007. The next prime is 75321013. The reversal of 75321011 is 11012357.

It is not a de Polignac number, because 75321011 - 2² = 75321007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75321013) 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, 49910 + ... + 51396.

It is an arithmetic number, because the mean of its divisors is an integer number (9683160).

Almost surely, 2^75321011 is an apocalyptic number.

75321011 is a deficient number, since it is larger than the sum of its proper divisors (2144269).

75321011 is an frugal number, since it uses more digits than its factorization.

75321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 75321011 is about 8678.7678272898. The cubic root of 75321011 is about 422.3171455272.

Adding to 75321011 its reverse (11012357), we get a palindrome (86333368).

The spelling of 75321011 in words is "seventy-five million, three hundred twenty-one thousand, eleven".