65502490 has 16 divisors (see below), whose sum is σ = 120413952. Its totient is φ = 25643344.

The previous prime is 65502433. The next prime is 65502497. The reversal of 65502490 is 9420556.

It is not an unprimeable number, because it can be changed into a prime (65502497) by changing a digit.

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, 69214 + ... + 70153.

It is an arithmetic number, because the mean of its divisors is an integer number (7525872).

Almost surely, 2^65502490 is an apocalyptic number.

65502490 is a deficient number, since it is larger than the sum of its proper divisors (54911462).

65502490 is a wasteful number, since it uses less digits than its factorization.

65502490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139421.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 65502490 is about 8093.3608593711. The cubic root of 65502490 is about 403.1060068771.

The spelling of 65502490 in words is "sixty-five million, five hundred two thousand, four hundred ninety".