65455072 has 48 divisors (see below), whose sum is σ = 134734320. Its totient is φ = 31269888.

The previous prime is 65455051. The next prime is 65455121. The reversal of 65455072 is 27055456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69388 + ... + 70324.

It is an arithmetic number, because the mean of its divisors is an integer number (2806965).

Almost surely, 2^65455072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65455072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67367160).

65455072 is an abundant number, since it is smaller than the sum of its proper divisors (69279248).

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

65455072 is a wasteful number, since it uses less digits than its factorization.

65455072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 65455072 is about 8090.4308908735. The cubic root of 65455072 is about 403.0087123830.

The spelling of 65455072 in words is "sixty-five million, four hundred fifty-five thousand, seventy-two".