65215052 has 24 divisors (see below), whose sum is σ = 130690560. Its totient is φ = 27893520.

The previous prime is 65215021. The next prime is 65215063. The reversal of 65215052 is 25051256.

65215052 is digitally balanced in base 2 and base 9, because in such bases it contains all the possibile digits an equal number of times.

65215052 is strictly pandigital in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13949 + ... + 18027.

It is an arithmetic number, because the mean of its divisors is an integer number (5445440).

Almost surely, 2^65215052 is an apocalyptic number.

It is an amenable number.

65215052 is an abundant number, since it is smaller than the sum of its proper divisors (65475508).

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

65215052 is a wasteful number, since it uses less digits than its factorization.

65215052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65215052 is about 8075.5836940744. The cubic root of 65215052 is about 402.5155057489.

The spelling of 65215052 in words is "sixty-five million, two hundred fifteen thousand, fifty-two".