75145604825 has 6 divisors (see below), whose sum is σ = 93180550014. Its totient is φ = 60116483840.

The previous prime is 75145604819. The next prime is 75145604857. The reversal of 75145604825 is 52840654157.

It can be written as a sum of positive squares in 3 ways, for example, as 658640896 + 74486963929 = 25664^2 + 272923^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75145604825 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 75145604825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1502912072 + ... + 1502912121.

It is an arithmetic number, because the mean of its divisors is an integer number (15530091669).

Almost surely, 2^75145604825 is an apocalyptic number.

It is an amenable number.

75145604825 is a deficient number, since it is larger than the sum of its proper divisors (18034945189).

75145604825 is a wasteful number, since it uses less digits than its factorization.

75145604825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005824203 (or 3005824198 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 75145604825 in words is "seventy-five billion, one hundred forty-five million, six hundred four thousand, eight hundred twenty-five".