65195550 has 96 divisors (see below), whose sum is σ = 205344000. Its totient is φ = 14899680.

The previous prime is 65195549. The next prime is 65195579. The reversal of 65195550 is 5559156.

It is a super-3 number, since 3×65195550³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6001 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (2139000).

Almost surely, 2^65195550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65195550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102672000).

65195550 is an abundant number, since it is smaller than the sum of its proper divisors (140148450).

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

65195550 is a wasteful number, since it uses less digits than its factorization.

65195550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927 (or 6916 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 65195550 is about 8074.3761368913. The cubic root of 65195550 is about 402.4753788162.

The spelling of 65195550 in words is "sixty-five million, one hundred ninety-five thousand, five hundred fifty".