75538330825 has 24 divisors (see below), whose sum is σ = 101048686488. Its totient is φ = 55802772480.

The previous prime is 75538330823. The next prime is 75538330849. The reversal of 75538330825 is 52803383557.

It can be written as a sum of positive squares in 12 ways, for example, as 33732864 + 75504597961 = 5808^2 + 274781^2 .

It is not a de Polignac number, because 75538330825 - 2¹ = 75538330823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75538330823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654242 + ... + 1699291.

It is an arithmetic number, because the mean of its divisors is an integer number (4210361937).

Almost surely, 2^75538330825 is an apocalyptic number.

It is an amenable number.

75538330825 is a deficient number, since it is larger than the sum of its proper divisors (25510355663).

75538330825 is a wasteful number, since it uses less digits than its factorization.

75538330825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353613 (or 3353608 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 49.

The spelling of 75538330825 in words is "seventy-five billion, five hundred thirty-eight million, three hundred thirty thousand, eight hundred twenty-five".