64880052 has 12 divisors (see below), whose sum is σ = 151386816. Its totient is φ = 21626680.

The previous prime is 64879963. The next prime is 64880059. The reversal of 64880052 is 25008846.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×64880052² = 8418842295045408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64879995 and 64880022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64880059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703324 + ... + 2703347.

It is an arithmetic number, because the mean of its divisors is an integer number (12615568).

Almost surely, 2^64880052 is an apocalyptic number.

It is an amenable number.

64880052 is an abundant number, since it is smaller than the sum of its proper divisors (86506764).

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

64880052 is a wasteful number, since it uses less digits than its factorization.

64880052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406678 (or 5406676 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 64880052 is about 8054.8154541243. The cubic root of 64880052 is about 401.8251015124.

Adding to 64880052 its reverse (25008846), we get a palindrome (89888898).

The spelling of 64880052 in words is "sixty-four million, eight hundred eighty thousand, fifty-two".