65057555 has 8 divisors (see below), whose sum is σ = 82661472. Its totient is φ = 48984448.

The previous prime is 65057549. The next prime is 65057557. The reversal of 65057555 is 55575056.

65057555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65057555 - 2⁶ = 65057491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65057557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382607 + ... + 382776.

It is an arithmetic number, because the mean of its divisors is an integer number (10332684).

Almost surely, 2^65057555 is an apocalyptic number.

65057555 is a deficient number, since it is larger than the sum of its proper divisors (17603917).

65057555 is a wasteful number, since it uses less digits than its factorization.

65057555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765405.

The product of its (nonzero) digits is 131250, while the sum is 38.

The square root of 65057555 is about 8065.8263680791. The cubic root of 65057555 is about 402.1912141165.

The spelling of 65057555 in words is "sixty-five million, fifty-seven thousand, five hundred fifty-five".