75564361 has 4 divisors (see below), whose sum is σ = 78849792. Its totient is φ = 72278932.

The previous prime is 75564319. The next prime is 75564413. The reversal of 75564361 is 16346557.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75564361 - 2⁷ = 75564233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75564361.

It is not an unprimeable number, because it can be changed into a prime (75564761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642681 + ... + 1642726.

It is an arithmetic number, because the mean of its divisors is an integer number (19712448).

Almost surely, 2^75564361 is an apocalyptic number.

It is an amenable number.

75564361 is a deficient number, since it is larger than the sum of its proper divisors (3285431).

75564361 is a wasteful number, since it uses less digits than its factorization.

75564361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285430.

The product of its digits is 75600, while the sum is 37.

The square root of 75564361 is about 8692.7763689169. The cubic root of 75564361 is about 422.7714693851.

The spelling of 75564361 in words is "seventy-five million, five hundred sixty-four thousand, three hundred sixty-one".