75125247 has 4 divisors (see below), whose sum is σ = 100167000. Its totient is φ = 50083496.

The previous prime is 75125201. The next prime is 75125251. The reversal of 75125247 is 74252157.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75125247 - 2¹⁰ = 75124223 is a prime.

It is a super-2 number, since 2×75125247² = 11287605473622018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75125147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12520872 + ... + 12520877.

It is an arithmetic number, because the mean of its divisors is an integer number (25041750).

Almost surely, 2^75125247 is an apocalyptic number.

75125247 is a deficient number, since it is larger than the sum of its proper divisors (25041753).

75125247 is a wasteful number, since it uses less digits than its factorization.

75125247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041752.

The product of its digits is 19600, while the sum is 33.

The square root of 75125247 is about 8667.4821603508. The cubic root of 75125247 is about 421.9509519000.

The spelling of 75125247 in words is "seventy-five million, one hundred twenty-five thousand, two hundred forty-seven".