64625000 has 112 divisors (see below), whose sum is σ = 168747840. Its totient is φ = 23000000.

The previous prime is 64624997. The next prime is 64625003. The reversal of 64625000 is 52646.

64625000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64624997) and next prime (64625003).

It is not an unprimeable number, because it can be changed into a prime (64625003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1374977 + ... + 1375023.

Almost surely, 2^64625000 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 64625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84373920).

64625000 is an abundant number, since it is smaller than the sum of its proper divisors (104122840).

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

64625000 is an equidigital number, since it uses as much as digits as its factorization.

64625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 64625000 is about 8038.9675954068. The cubic root of 64625000 is about 401.2978676278.

Adding to 64625000 its reverse (52646), we get a palindrome (64677646).

The spelling of 64625000 in words is "sixty-four million, six hundred twenty-five thousand".