67505051 has 2 divisors, whose sum is σ = 67505052. Its totient is φ = 67505050.

The previous prime is 67505047. The next prime is 67505059. The reversal of 67505051 is 15050576.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67505051 - 2² = 67505047 is a prime.

It is not a weakly prime, because it can be changed into another prime (67505059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33752525 + 33752526.

It is an arithmetic number, because the mean of its divisors is an integer number (33752526).

Almost surely, 2^67505051 is an apocalyptic number.

67505051 is a deficient number, since it is larger than the sum of its proper divisors (1).

67505051 is an equidigital number, since it uses as much as digits as its factorization.

67505051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 67505051 is about 8216.1457508980. The cubic root of 67505051 is about 407.1727981792.

It can be divided in two parts, 6 and 7505051, that added together give a palindrome (7505057).

The spelling of 67505051 in words is "sixty-seven million, five hundred five thousand, fifty-one".