75250631 has 2 divisors, whose sum is σ = 75250632. Its totient is φ = 75250630.

The previous prime is 75250627. The next prime is 75250633. The reversal of 75250631 is 13605257.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75250631 - 2² = 75250627 is a prime.

It is a super-2 number, since 2×75250631² = 11325314931796322, which contains 22 as substring.

Together with 75250633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75250594 and 75250603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75250633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37625315 + 37625316.

It is an arithmetic number, because the mean of its divisors is an integer number (37625316).

Almost surely, 2^75250631 is an apocalyptic number.

75250631 is a deficient number, since it is larger than the sum of its proper divisors (1).

75250631 is an equidigital number, since it uses as much as digits as its factorization.

75250631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 75250631 is about 8674.7121566078. The cubic root of 75250631 is about 422.1855667342.

Adding to 75250631 its reverse (13605257), we get a palindrome (88855888).

The spelling of 75250631 in words is "seventy-five million, two hundred fifty thousand, six hundred thirty-one".