65510049 has 16 divisors (see below), whose sum is σ = 99431424. Its totient is φ = 37976400.

The previous prime is 65510033. The next prime is 65510059. The reversal of 65510049 is 94001556.

It is not a de Polignac number, because 65510049 - 2⁴ = 65510033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65509998 and 65510025.

It is not an unprimeable number, because it can be changed into a prime (65510059) 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, 42397 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (6214464).

Almost surely, 2^65510049 is an apocalyptic number.

65510049 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

65510049 is a deficient number, since it is larger than the sum of its proper divisors (33921375).

65510049 is a wasteful number, since it uses less digits than its factorization.

65510049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86348.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 65510049 is about 8093.8278336026. The cubic root of 65510049 is about 403.1215124510.

The spelling of 65510049 in words is "sixty-five million, five hundred ten thousand, forty-nine".