75025431 has 24 divisors (see below), whose sum is σ = 118198080. Its totient is φ = 45579456.

The previous prime is 75025427. The next prime is 75025441. The reversal of 75025431 is 13452057.

It is a happy number.

It is not a de Polignac number, because 75025431 - 2² = 75025427 is a prime.

It is a super-2 number, since 2×75025431² = 11257630593471522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75025395 and 75025404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75025421) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5185 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (4924920).

Almost surely, 2^75025431 is an apocalyptic number.

75025431 is a deficient number, since it is larger than the sum of its proper divisors (43172649).

75025431 is a wasteful number, since it uses less digits than its factorization.

75025431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215 (or 8212 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75025431 is about 8661.7221728707. The cubic root of 75025431 is about 421.7639924558.

Adding to 75025431 its reverse (13452057), we get a palindrome (88477488).

The spelling of 75025431 in words is "seventy-five million, twenty-five thousand, four hundred thirty-one".