65615051 has 2 divisors, whose sum is σ = 65615052. Its totient is φ = 65615050.

The previous prime is 65615041. The next prime is 65615063. The reversal of 65615051 is 15051656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65615051 - 2¹⁰ = 65614027 is a prime.

It is not a weakly prime, because it can be changed into another prime (65615041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32807525 + 32807526.

It is an arithmetic number, because the mean of its divisors is an integer number (32807526).

Almost surely, 2^65615051 is an apocalyptic number.

65615051 is a deficient number, since it is larger than the sum of its proper divisors (1).

65615051 is an equidigital number, since it uses as much as digits as its factorization.

65615051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 65615051 is about 8100.3117841229. The cubic root of 65615051 is about 403.3367769819.

The spelling of 65615051 in words is "sixty-five million, six hundred fifteen thousand, fifty-one".