75561497005 has 16 divisors (see below), whose sum is σ = 96338134080. Its totient is φ = 56732441472.

The previous prime is 75561496993. The next prime is 75561497021. The reversal of 75561497005 is 50079416557.

It is a cyclic number.

It is not a de Polignac number, because 75561497005 - 2⁵ = 75561496973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75561497005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3706584 + ... + 3726913.

It is an arithmetic number, because the mean of its divisors is an integer number (6021133380).

Almost surely, 2^75561497005 is an apocalyptic number.

It is an amenable number.

75561497005 is a deficient number, since it is larger than the sum of its proper divisors (20776637075).

75561497005 is a wasteful number, since it uses less digits than its factorization.

75561497005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433628.

The product of its (nonzero) digits is 1323000, while the sum is 49.

The spelling of 75561497005 in words is "seventy-five billion, five hundred sixty-one million, four hundred ninety-seven thousand, five".