75503705 has 4 divisors (see below), whose sum is σ = 90604452. Its totient is φ = 60402960.

The previous prime is 75503683. The next prime is 75503713. The reversal of 75503705 is 50730557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50730557 = 593 ⋅85549.

It can be written as a sum of positive squares in 2 ways, for example, as 9909904 + 65593801 = 3148^2 + 8099^2 .

It is not a de Polignac number, because 75503705 - 2¹² = 75499609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7550366 + ... + 7550375.

It is an arithmetic number, because the mean of its divisors is an integer number (22651113).

Almost surely, 2^75503705 is an apocalyptic number.

It is an amenable number.

75503705 is a deficient number, since it is larger than the sum of its proper divisors (15100747).

75503705 is a wasteful number, since it uses less digits than its factorization.

75503705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15100746.

The product of its (nonzero) digits is 18375, while the sum is 32.

The square root of 75503705 is about 8689.2867946685. The cubic root of 75503705 is about 422.6583186423.

The spelling of 75503705 in words is "seventy-five million, five hundred three thousand, seven hundred five".