65070057 has 16 divisors (see below), whose sum is σ = 94297280. Its totient is φ = 39673152.

The previous prime is 65070053. The next prime is 65070073. The reversal of 65070057 is 75007056.

It is not a de Polignac number, because 65070057 - 2² = 65070053 is a prime.

It is a super-2 number, since 2×65070057² = 8468224635966498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65070053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3403 + ... + 11904.

It is an arithmetic number, because the mean of its divisors is an integer number (5893580).

Almost surely, 2^65070057 is an apocalyptic number.

It is an amenable number.

65070057 is a deficient number, since it is larger than the sum of its proper divisors (29227223).

65070057 is a wasteful number, since it uses less digits than its factorization.

65070057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 65070057 is about 8066.6013289365. The cubic root of 65070057 is about 402.2169752675.

It can be divided in two parts, 650 and 70057, that added together give a palindrome (70707).

The spelling of 65070057 in words is "sixty-five million, seventy thousand, fifty-seven".