64275624 has 96 divisors (see below), whose sum is σ = 201789120. Its totient is φ = 18102528.

The previous prime is 64275611. The next prime is 64275641. The reversal of 64275624 is 42657246.

64275624 is a `hidden beast` number, since 6 + 4 + 27 + 5 + 624 = 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 23 ways as a sum of consecutive naturals, for example, 35919 + ... + 37665.

It is an arithmetic number, because the mean of its divisors is an integer number (2101970).

Almost surely, 2^64275624 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 64275624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100894560).

64275624 is an abundant number, since it is smaller than the sum of its proper divisors (137513496).

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

64275624 is a wasteful number, since it uses less digits than its factorization.

64275624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1832 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 64275624 is about 8017.2079928115. The cubic root of 64275624 is about 400.5733943213.

The spelling of 64275624 in words is "sixty-four million, two hundred seventy-five thousand, six hundred twenty-four".