75256988 has 6 divisors (see below), whose sum is σ = 131699736. Its totient is φ = 37628492.

The previous prime is 75256969. The next prime is 75256999. The reversal of 75256988 is 88965257.

It is a super-4 number, since 4×75256988⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9407120 + ... + 9407127.

It is an arithmetic number, because the mean of its divisors is an integer number (21949956).

Almost surely, 2^75256988 is an apocalyptic number.

It is an amenable number.

75256988 is a deficient number, since it is larger than the sum of its proper divisors (56442748).

75256988 is a wasteful number, since it uses less digits than its factorization.

75256988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18814251 (or 18814249 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The square root of 75256988 is about 8675.0785587221. The cubic root of 75256988 is about 422.1974548209.

The spelling of 75256988 in words is "seventy-five million, two hundred fifty-six thousand, nine hundred eighty-eight".