64061952 has 80 divisors (see below), whose sum is σ = 172355040. Its totient is φ = 21143552.

The previous prime is 64061947. The next prime is 64061971. The reversal of 64061952 is 25916046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274828 + ... + 275060.

It is an arithmetic number, because the mean of its divisors is an integer number (2154438).

Almost surely, 2^64061952 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 64061952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86177520).

64061952 is an abundant number, since it is smaller than the sum of its proper divisors (108293088).

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

64061952 is a wasteful number, since it uses less digits than its factorization.

64061952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 64061952 is about 8003.8710634292. The cubic root of 64061952 is about 400.1290250435.

Adding to 64061952 its reverse (25916046), we get a palindrome (89977998).

The spelling of 64061952 in words is "sixty-four million, sixty-one thousand, nine hundred fifty-two".