75072735 has 24 divisors (see below), whose sum is σ = 134615520. Its totient is φ = 38657472.

The previous prime is 75072733. The next prime is 75072757. The reversal of 75072735 is 53727057.

It is not a de Polignac number, because 75072735 - 2¹ = 75072733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75072735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75072733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27459 + ... + 30068.

It is an arithmetic number, because the mean of its divisors is an integer number (5608980).

Almost surely, 2^75072735 is an apocalyptic number.

75072735 is a deficient number, since it is larger than the sum of its proper divisors (59542785).

75072735 is a wasteful number, since it uses less digits than its factorization.

75072735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57567 (or 57564 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 75072735 is about 8664.4523773866. The cubic root of 75072735 is about 421.8526154378.

The spelling of 75072735 in words is "seventy-five million, seventy-two thousand, seven hundred thirty-five".