67520611 has 2 divisors, whose sum is σ = 67520612. Its totient is φ = 67520610.

The previous prime is 67520539. The next prime is 67520627. The reversal of 67520611 is 11602576.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67520611 - 2⁷ = 67520483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67520611.

It is not a weakly prime, because it can be changed into another prime (67520911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33760305 + 33760306.

It is an arithmetic number, because the mean of its divisors is an integer number (33760306).

Almost surely, 2^67520611 is an apocalyptic number.

67520611 is a deficient number, since it is larger than the sum of its proper divisors (1).

67520611 is an equidigital number, since it uses as much as digits as its factorization.

67520611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 67520611 is about 8217.0926123538. The cubic root of 67520611 is about 407.2040803915.

The spelling of 67520611 in words is "sixty-seven million, five hundred twenty thousand, six hundred eleven".