65545249 has 32 divisors (see below), whose sum is σ = 85536000. Its totient is φ = 48733440.

The previous prime is 65545243. The next prime is 65545261. The reversal of 65545249 is 94254556.

It is not a de Polignac number, because 65545249 - 2⁷ = 65545121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65545243) 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, 332619 + ... + 332815.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^65545249 is an apocalyptic number.

It is an amenable number.

65545249 is a deficient number, since it is larger than the sum of its proper divisors (19990751).

65545249 is a wasteful number, since it uses less digits than its factorization.

65545249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its digits is 216000, while the sum is 40.

The square root of 65545249 is about 8096.0020380432. The cubic root of 65545249 is about 403.1937015615.

The spelling of 65545249 in words is "sixty-five million, five hundred forty-five thousand, two hundred forty-nine".