75906725 has 6 divisors (see below), whose sum is σ = 94124370. Its totient is φ = 60725360.

The previous prime is 75906713. The next prime is 75906769. The reversal of 75906725 is 52760957.

It can be written as a sum of positive squares in 3 ways, for example, as 22221796 + 53684929 = 4714^2 + 7327^2 .

It is not a de Polignac number, because 75906725 - 2⁸ = 75906469 is a prime.

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 in 5 ways as a sum of consecutive naturals, for example, 1518110 + ... + 1518159.

It is an arithmetic number, because the mean of its divisors is an integer number (15687395).

Almost surely, 2^75906725 is an apocalyptic number.

It is an amenable number.

75906725 is a deficient number, since it is larger than the sum of its proper divisors (18217645).

75906725 is a wasteful number, since it uses less digits than its factorization.

75906725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036279 (or 3036274 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 75906725 is about 8712.4465565075. The cubic root of 75906725 is about 423.4089995705.

The spelling of 75906725 in words is "seventy-five million, nine hundred six thousand, seven hundred twenty-five".