64001552 has 20 divisors (see below), whose sum is σ = 124286316. Its totient is φ = 31927680.

The previous prime is 64001551. The next prime is 64001569. The reversal of 64001552 is 25510046.

It can be written as a sum of positive squares in 2 ways, for example, as 18627856 + 45373696 = 4316^2 + 6736^2 .

It is not an unprimeable number, because it can be changed into a prime (64001551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3038 + ... + 11714.

Almost surely, 2^64001552 is an apocalyptic number.

It is an amenable number.

64001552 is a deficient number, since it is larger than the sum of its proper divisors (60284764).

64001552 is a wasteful number, since it uses less digits than its factorization.

64001552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146 (or 9140 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 64001552 is about 8000.0969994119. The cubic root of 64001552 is about 400.0032333072.

Adding to 64001552 its reverse (25510046), we get a palindrome (89511598).

The spelling of 64001552 in words is "sixty-four million, one thousand, five hundred fifty-two".