75625231 has 12 divisors (see below), whose sum is σ = 87642360. Its totient is φ = 64703360.

The previous prime is 75625211. The next prime is 75625237. The reversal of 75625231 is 13252657.

It is not a de Polignac number, because 75625231 - 2⁷ = 75625103 is a prime.

It is a super-2 number, since 2×75625231² = 11438351127606722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75625193 and 75625202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75625237) 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 11 ways as a sum of consecutive naturals, for example, 8716 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (7303530).

Almost surely, 2^75625231 is an apocalyptic number.

75625231 is a deficient number, since it is larger than the sum of its proper divisors (12017129).

75625231 is a wasteful number, since it uses less digits than its factorization.

75625231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23834 (or 23817 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 75625231 is about 8696.2768470191. The cubic root of 75625231 is about 422.8849584786.

Adding to 75625231 its reverse (13252657), we get a palindrome (88877888).

The spelling of 75625231 in words is "seventy-five million, six hundred twenty-five thousand, two hundred thirty-one".