75215582325 has 36 divisors (see below), whose sum is σ = 145082506660. Its totient is φ = 37029208320.

The previous prime is 75215582311. The next prime is 75215582401. The reversal of 75215582325 is 52328551257.

75215582325 is a `hidden beast` number, since 7 + 52 + 1 + 558 + 23 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2771706609 + 72443875716 = 52647^2 + 269154^2 .

It is not a de Polignac number, because 75215582325 - 2²⁴ = 75198805109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12854440 + ... + 12860289.

Almost surely, 2^75215582325 is an apocalyptic number.

75215582325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75215582325 is a deficient number, since it is larger than the sum of its proper divisors (69866924335).

75215582325 is a wasteful number, since it uses less digits than its factorization.

75215582325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714758 (or 25714750 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The spelling of 75215582325 in words is "seventy-five billion, two hundred fifteen million, five hundred eighty-two thousand, three hundred twenty-five".