75505525 has 12 divisors (see below), whose sum is σ = 98555200. Its totient is φ = 57224880.

The previous prime is 75505523. The next prime is 75505603. The reversal of 75505525 is 52550557.

It is not a de Polignac number, because 75505525 - 2¹ = 75505523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75505523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79005 + ... + 79954.

Almost surely, 2^75505525 is an apocalyptic number.

It is an amenable number.

75505525 is a deficient number, since it is larger than the sum of its proper divisors (23049675).

75505525 is a wasteful number, since it uses less digits than its factorization.

75505525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158988 (or 158983 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 75505525 is about 8689.3915206992. The cubic root of 75505525 is about 422.6617146432.

It can be divided in two parts, 7550552 and 5, that added together give a palindrome (7550557).

The spelling of 75505525 in words is "seventy-five million, five hundred five thousand, five hundred twenty-five".