75243385 has 32 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 49600512.

The previous prime is 75243331. The next prime is 75243391. The reversal of 75243385 is 58334257.

It is a cyclic number.

It is not a de Polignac number, because 75243385 - 2¹⁷ = 75112313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 125316 + ... + 125914.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^75243385 is an apocalyptic number.

It is an amenable number.

75243385 is a deficient number, since it is larger than the sum of its proper divisors (32007815).

75243385 is a wasteful number, since it uses less digits than its factorization.

75243385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its digits is 100800, while the sum is 37.

The square root of 75243385 is about 8674.2944958077. The cubic root of 75243385 is about 422.1720153315.

The spelling of 75243385 in words is "seventy-five million, two hundred forty-three thousand, three hundred eighty-five".