65502378 has 16 divisors (see below), whose sum is σ = 145560960. Its totient is φ = 21834108.

The previous prime is 65502347. The next prime is 65502401. The reversal of 65502378 is 87320556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606450 + ... + 606557.

It is an arithmetic number, because the mean of its divisors is an integer number (9097560).

Almost surely, 2^65502378 is an apocalyptic number.

65502378 is an abundant number, since it is smaller than the sum of its proper divisors (80058582).

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

65502378 is a wasteful number, since it uses less digits than its factorization.

65502378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213018 (or 1213012 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 65502378 is about 8093.3539401165. The cubic root of 65502378 is about 403.1057771256.

The spelling of 65502378 in words is "sixty-five million, five hundred two thousand, three hundred seventy-eight".