75365047 has 4 divisors (see below), whose sum is σ = 75414240. Its totient is φ = 75315856.

The previous prime is 75365033. The next prime is 75365051. The reversal of 75365047 is 74056357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74056357 = 19 ⋅3897703.

It is a cyclic number.

It is not a de Polignac number, because 75365047 - 2²³ = 66976439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75364997 and 75365015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75365027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22222 + ... + 25387.

It is an arithmetic number, because the mean of its divisors is an integer number (18853560).

Almost surely, 2^75365047 is an apocalyptic number.

75365047 is a deficient number, since it is larger than the sum of its proper divisors (49193).

75365047 is a wasteful number, since it uses less digits than its factorization.

75365047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49192.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 75365047 is about 8681.3044526730. The cubic root of 75365047 is about 422.3994312644.

The spelling of 75365047 in words is "seventy-five million, three hundred sixty-five thousand, forty-seven".