65054820 has 24 divisors (see below), whose sum is σ = 182153664. Its totient is φ = 17347936.

The previous prime is 65054813. The next prime is 65054831. The reversal of 65054820 is 2845056.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542064 + ... + 542183.

It is an arithmetic number, because the mean of its divisors is an integer number (7589736).

Almost surely, 2^65054820 is an apocalyptic number.

65054820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65054820 is an abundant number, since it is smaller than the sum of its proper divisors (117098844).

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

65054820 is a wasteful number, since it uses less digits than its factorization.

65054820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084259 (or 1084257 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 65054820 is about 8065.6568238427. The cubic root of 65054820 is about 402.1855780383.

Adding to 65054820 its reverse (2845056), we get a palindrome (67899876).

It can be divided in two parts, 6505 and 4820, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 65054820 in words is "sixty-five million, fifty-four thousand, eight hundred twenty".