75127725 has 36 divisors (see below), whose sum is σ = 138915712. Its totient is φ = 38772000.

The previous prime is 75127721. The next prime is 75127753. The reversal of 75127725 is 52772157.

It is not a de Polignac number, because 75127725 - 2² = 75127721 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75127725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75127721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1590 + ... + 12360.

Almost surely, 2^75127725 is an apocalyptic number.

75127725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75127725 is a deficient number, since it is larger than the sum of its proper divisors (63787987).

75127725 is a wasteful number, since it uses less digits than its factorization.

75127725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10818 (or 10810 counting only the distinct ones).

The product of its digits is 34300, while the sum is 36.

The square root of 75127725 is about 8667.6251072598. The cubic root of 75127725 is about 421.9555911880.

The spelling of 75127725 in words is "seventy-five million, one hundred twenty-seven thousand, seven hundred twenty-five".