75552525 has 36 divisors (see below), whose sum is σ = 135819060. Its totient is φ = 40147200.

The previous prime is 75552517. The next prime is 75552527. The reversal of 75552525 is 52525557.

It can be written as a sum of positive squares in 6 ways, for example, as 19044 + 75533481 = 138^2 + 8691^2 .

It is not a de Polignac number, because 75552525 - 2³ = 75552517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75552525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75552527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91615 + ... + 92435.

Almost surely, 2^75552525 is an apocalyptic number.

75552525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75552525 is a deficient number, since it is larger than the sum of its proper divisors (60266535).

75552525 is a wasteful number, since it uses less digits than its factorization.

75552525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1238 counting only the distinct ones).

The product of its digits is 87500, while the sum is 36.

The square root of 75552525 is about 8692.0955471049. The cubic root of 75552525 is about 422.7493946737.

The spelling of 75552525 in words is "seventy-five million, five hundred fifty-two thousand, five hundred twenty-five".