75687525 has 36 divisors (see below), whose sum is σ = 138735168. Its totient is φ = 39422880.

The previous prime is 75687509. The next prime is 75687527. The reversal of 75687525 is 52578657.

It is not a de Polignac number, because 75687525 - 2⁴ = 75687509 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75687527) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5764 + ... + 13586.

Almost surely, 2^75687525 is an apocalyptic number.

75687525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75687525 is a deficient number, since it is larger than the sum of its proper divisors (63047643).

75687525 is a wasteful number, since it uses less digits than its factorization.

75687525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7882 (or 7874 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 75687525 is about 8699.8577574579. The cubic root of 75687525 is about 423.0010395159.

It can be divided in two parts, 756875 and 25, that added together give a square (756900 = 870²).

The spelling of 75687525 in words is "seventy-five million, six hundred eighty-seven thousand, five hundred twenty-five".