75857532 has 12 divisors (see below), whose sum is σ = 177000936. Its totient is φ = 25285840.

The previous prime is 75857531. The next prime is 75857549. The reversal of 75857532 is 23575857.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×75857532² = 11508730322262048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75857531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3160719 + ... + 3160742.

It is an arithmetic number, because the mean of its divisors is an integer number (14750078).

Almost surely, 2^75857532 is an apocalyptic number.

It is an amenable number.

75857532 is an abundant number, since it is smaller than the sum of its proper divisors (101143404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75857532 is a wasteful number, since it uses less digits than its factorization.

75857532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321468 (or 6321466 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The square root of 75857532 is about 8709.6229539516. The cubic root of 75857532 is about 423.3175133416.

The spelling of 75857532 in words is "seventy-five million, eight hundred fifty-seven thousand, five hundred thirty-two".