65825064551 has 2 divisors, whose sum is σ = 65825064552. Its totient is φ = 65825064550.

The previous prime is 65825064541. The next prime is 65825064607. The reversal of 65825064551 is 15546052856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65825064551 - 2¹⁴ = 65825048167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65825064496 and 65825064505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65825064541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32912532275 + 32912532276.

It is an arithmetic number, because the mean of its divisors is an integer number (32912532276).

Almost surely, 2^65825064551 is an apocalyptic number.

65825064551 is a deficient number, since it is larger than the sum of its proper divisors (1).

65825064551 is an equidigital number, since it uses as much as digits as its factorization.

65825064551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 65825064551 in words is "sixty-five billion, eight hundred twenty-five million, sixty-four thousand, five hundred fifty-one".