65850057 has 32 divisors (see below), whose sum is σ = 120072960. Its totient is φ = 34732800.

The previous prime is 65850053. The next prime is 65850119. The reversal of 65850057 is 75005856.

It is not a de Polignac number, because 65850057 - 2² = 65850053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65850053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10944 + ... + 15857.

It is an arithmetic number, because the mean of its divisors is an integer number (3752280).

Almost surely, 2^65850057 is an apocalyptic number.

It is an amenable number.

65850057 is a deficient number, since it is larger than the sum of its proper divisors (54222903).

65850057 is a wasteful number, since it uses less digits than its factorization.

65850057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26830 (or 26824 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 65850057 is about 8114.8048035674. The cubic root of 65850057 is about 403.8177318019.

The spelling of 65850057 in words is "sixty-five million, eight hundred fifty thousand, fifty-seven".