64464552 has 64 divisors (see below), whose sum is σ = 180360000. Its totient is φ = 21333312.

The previous prime is 64464539. The next prime is 64464571. The reversal of 64464552 is 25546446.

64464552 is a `hidden beast` number, since 6 + 4 + 4 + 645 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31183 + ... + 33185.

It is an arithmetic number, because the mean of its divisors is an integer number (2818125).

Almost surely, 2^64464552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64464552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90180000).

64464552 is an abundant number, since it is smaller than the sum of its proper divisors (115895448).

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

64464552 is a wasteful number, since it uses less digits than its factorization.

64464552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2157 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 64464552 is about 8028.9820027199. The cubic root of 64464552 is about 400.9654843914.

The spelling of 64464552 in words is "sixty-four million, four hundred sixty-four thousand, five hundred fifty-two".