65455950 has 192 divisors, whose sum is σ = 207843840. Its totient is φ = 13271040.

The previous prime is 65455937. The next prime is 65455993. The reversal of 65455950 is 5955456.

It is a junction number, because it is equal to n+sod(n) for n = 65455899 and 65455908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 339054 + ... + 339246.

It is an arithmetic number, because the mean of its divisors is an integer number (1082520).

Almost surely, 2^65455950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65455950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103921920).

65455950 is an abundant number, since it is smaller than the sum of its proper divisors (142387890).

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

65455950 is a wasteful number, since it uses less digits than its factorization.

65455950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 65455950 is about 8090.4851523255. The cubic root of 65455950 is about 403.0105143318.

The spelling of 65455950 in words is "sixty-five million, four hundred fifty-five thousand, nine hundred fifty".