66053479 has 2 divisors, whose sum is σ = 66053480. Its totient is φ = 66053478.

The previous prime is 66053453. The next prime is 66053489. The reversal of 66053479 is 97435066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66053479 - 2²¹ = 63956327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66053489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33026739 + 33026740.

It is an arithmetic number, because the mean of its divisors is an integer number (33026740).

Almost surely, 2^66053479 is an apocalyptic number.

66053479 is a deficient number, since it is larger than the sum of its proper divisors (1).

66053479 is an equidigital number, since it uses as much as digits as its factorization.

66053479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 66053479 is about 8127.3291430826. The cubic root of 66053479 is about 404.2331248540.

The spelling of 66053479 in words is "sixty-six million, fifty-three thousand, four hundred seventy-nine".