65503057 has 16 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 58634752.

The previous prime is 65503037. The next prime is 65503063. The reversal of 65503057 is 75030556.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65503057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65503037) 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, 90744 + ... + 91462.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 2^65503057 is an apocalyptic number.

It is an amenable number.

65503057 is a deficient number, since it is larger than the sum of its proper divisors (7280303).

65503057 is a wasteful number, since it uses less digits than its factorization.

65503057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 65503057 is about 8093.3958880065. The cubic root of 65503057 is about 403.1071699904.

The spelling of 65503057 in words is "sixty-five million, five hundred three thousand, fifty-seven".