65503648 has 24 divisors (see below), whose sum is σ = 147383712. Its totient is φ = 28072896.

The previous prime is 65503643. The next prime is 65503657. The reversal of 65503648 is 84630556.

It is a super-3 number, since 3×65503648³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (65503643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145990 + ... + 146437.

It is an arithmetic number, because the mean of its divisors is an integer number (6140988).

Almost surely, 2^65503648 is an apocalyptic number.

It is an amenable number.

65503648 is an abundant number, since it is smaller than the sum of its proper divisors (81880064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65503648 is a wasteful number, since it uses less digits than its factorization.

65503648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292444 (or 292436 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 65503648 is about 8093.4323991740. The cubic root of 65503648 is about 403.1083823288.

The spelling of 65503648 in words is "sixty-five million, five hundred three thousand, six hundred forty-eight".