75747125 has 8 divisors (see below), whose sum is σ = 94532568. Its totient is φ = 60597600.

The previous prime is 75747109. The next prime is 75747137. The reversal of 75747125 is 52174757.

It can be written as a sum of positive squares in 4 ways, for example, as 1062961 + 74684164 = 1031^2 + 8642^2 .

It is not a de Polignac number, because 75747125 - 2⁴ = 75747109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302864 + ... + 303113.

It is an arithmetic number, because the mean of its divisors is an integer number (11816571).

Almost surely, 2^75747125 is an apocalyptic number.

It is an amenable number.

75747125 is a deficient number, since it is larger than the sum of its proper divisors (18785443).

75747125 is an equidigital number, since it uses as much as digits as its factorization.

75747125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605992 (or 605982 counting only the distinct ones).

The product of its digits is 68600, while the sum is 38.

The square root of 75747125 is about 8703.2824267629. The cubic root of 75747125 is about 423.1120408442.

The spelling of 75747125 in words is "seventy-five million, seven hundred forty-seven thousand, one hundred twenty-five".