65525345551 has 2 divisors, whose sum is σ = 65525345552. Its totient is φ = 65525345550.

The previous prime is 65525345537. The next prime is 65525345569. The reversal of 65525345551 is 15554352556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65525345551 - 2¹³ = 65525337359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65525345521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32762672775 + 32762672776.

It is an arithmetic number, because the mean of its divisors is an integer number (32762672776).

Almost surely, 2^65525345551 is an apocalyptic number.

65525345551 is a deficient number, since it is larger than the sum of its proper divisors (1).

65525345551 is an equidigital number, since it uses as much as digits as its factorization.

65525345551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250000, while the sum is 46.

The spelling of 65525345551 in words is "sixty-five billion, five hundred twenty-five million, three hundred forty-five thousand, five hundred fifty-one".