75504945 has 8 divisors (see below), whose sum is σ = 120807936. Its totient is φ = 40269296.

The previous prime is 75504943. The next prime is 75504971. The reversal of 75504945 is 54940557.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75504945 - 2¹ = 75504943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75504943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2516817 + ... + 2516846.

It is an arithmetic number, because the mean of its divisors is an integer number (15100992).

Almost surely, 2^75504945 is an apocalyptic number.

It is an amenable number.

75504945 is a deficient number, since it is larger than the sum of its proper divisors (45302991).

75504945 is a wasteful number, since it uses less digits than its factorization.

75504945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033671.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 75504945 is about 8689.3581466067. The cubic root of 75504945 is about 422.6606324071.

The spelling of 75504945 in words is "seventy-five million, five hundred four thousand, nine hundred forty-five".