64652544 has 108 divisors (see below), whose sum is σ = 203435232. Its totient is φ = 19584000.

The previous prime is 64652477. The next prime is 64652557. The reversal of 64652544 is 44525646.

64652544 is a `hidden beast` number, since 64 + 6 + 52 + 544 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 64652499 and 64652508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24069 + ... + 26619.

Almost surely, 2^64652544 is an apocalyptic number.

64652544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64652544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101717616).

64652544 is an abundant number, since it is smaller than the sum of its proper divisors (138782688).

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

64652544 is a wasteful number, since it uses less digits than its factorization.

64652544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584 (or 2567 counting only the distinct ones).

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

The square root of 64652544 is about 8040.6805682106. The cubic root of 64652544 is about 401.3548722879.

It can be divided in two parts, 6465 and 2544, that added together give a palindrome (9009).

The spelling of 64652544 in words is "sixty-four million, six hundred fifty-two thousand, five hundred forty-four".