65077057 has 8 divisors (see below), whose sum is σ = 67395240. Its totient is φ = 62799360.

The previous prime is 65077049. The next prime is 65077069. The reversal of 65077057 is 75077056.

It can be written as a sum of positive squares in 4 ways, for example, as 11553201 + 53523856 = 3399^2 + 7316^2 .

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 65077057 - 2³ = 65077049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65077757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (8424405).

Almost surely, 2^65077057 is an apocalyptic number.

It is an amenable number.

65077057 is a deficient number, since it is larger than the sum of its proper divisors (2318183).

65077057 is a wasteful number, since it uses less digits than its factorization.

65077057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 65077057 is about 8067.0352050800. The cubic root of 65077057 is about 402.2313977633.

Subtracting 65077057 from its reverse (75077056), we obtain a palindrome (9999999).

The spelling of 65077057 in words is "sixty-five million, seventy-seven thousand, fifty-seven".