75040805 has 48 divisors (see below), whose sum is σ = 113762880. Its totient is φ = 47190528.

The previous prime is 75040787. The next prime is 75040813. The reversal of 75040805 is 50804057.

It is not a de Polignac number, because 75040805 - 2⁶ = 75040741 is a prime.

It is a super-2 number, since 2×75040805² = 11262244830096050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178886 + ... + 179304.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 2^75040805 is an apocalyptic number.

It is an amenable number.

75040805 is a deficient number, since it is larger than the sum of its proper divisors (38722075).

75040805 is a wasteful number, since it uses less digits than its factorization.

75040805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 75040805 is about 8662.6095952663. The cubic root of 75040805 is about 421.7927993847.

The spelling of 75040805 in words is "seventy-five million, forty thousand, eight hundred five".