65425579 has 2 divisors, whose sum is σ = 65425580. Its totient is φ = 65425578.

The previous prime is 65425573. The next prime is 65425589. The reversal of 65425579 is 97552456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65425579 - 2⁹ = 65425067 is a prime.

It is not a weakly prime, because it can be changed into another prime (65425573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712789 + 32712790.

It is an arithmetic number, because the mean of its divisors is an integer number (32712790).

Almost surely, 2^65425579 is an apocalyptic number.

65425579 is a deficient number, since it is larger than the sum of its proper divisors (1).

65425579 is an equidigital number, since it uses as much as digits as its factorization.

65425579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 43.

The square root of 65425579 is about 8088.6079766546. The cubic root of 65425579 is about 402.9481735470.

It can be divided in two parts, 6542 and 5579, that added together give a palindrome (12121).

The spelling of 65425579 in words is "sixty-five million, four hundred twenty-five thousand, five hundred seventy-nine".