75725398 has 16 divisors (see below), whose sum is σ = 131030784. Its totient is φ = 32149800.

The previous prime is 75725381. The next prime is 75725459. The reversal of 75725398 is 89352757.

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 7 ways as a sum of consecutive naturals, for example, 23778 + ... + 26773.

It is an arithmetic number, because the mean of its divisors is an integer number (8189424).

Almost surely, 2^75725398 is an apocalyptic number.

75725398 is a deficient number, since it is larger than the sum of its proper divisors (55305386).

75725398 is a wasteful number, since it uses less digits than its factorization.

75725398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50667.

The product of its digits is 529200, while the sum is 46.

The square root of 75725398 is about 8702.0341300181. The cubic root of 75725398 is about 423.0715823916.

The spelling of 75725398 in words is "seventy-five million, seven hundred twenty-five thousand, three hundred ninety-eight".