71625011 has 2 divisors, whose sum is σ = 71625012. Its totient is φ = 71625010.

The previous prime is 71624999. The next prime is 71625031. The reversal of 71625011 is 11052617.

It is a weak prime.

It is an emirp because it is prime and its reverse (11052617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71625011 - 2¹⁰ = 71623987 is a prime.

It is equal to p_4208063 and since 71625011 and 4208063 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (71625031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35812505 + 35812506.

It is an arithmetic number, because the mean of its divisors is an integer number (35812506).

Almost surely, 2^71625011 is an apocalyptic number.

71625011 is a deficient number, since it is larger than the sum of its proper divisors (1).

71625011 is an equidigital number, since it uses as much as digits as its factorization.

71625011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 71625011 is about 8463.1560897812. The cubic root of 71625011 is about 415.2932769934.

Adding to 71625011 its reverse (11052617), we get a palindrome (82677628).

The spelling of 71625011 in words is "seventy-one million, six hundred twenty-five thousand, eleven".