64250641 has 8 divisors (see below), whose sum is σ = 79077824. Its totient is φ = 50835600.

The previous prime is 64250617. The next prime is 64250657. The reversal of 64250641 is 14605246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64250641 - 2⁷ = 64250513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64250441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352935 + ... + 353116.

It is an arithmetic number, because the mean of its divisors is an integer number (9884728).

Almost surely, 2^64250641 is an apocalyptic number.

It is an amenable number.

64250641 is a deficient number, since it is larger than the sum of its proper divisors (14827183).

64250641 is a wasteful number, since it uses less digits than its factorization.

64250641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706071.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64250641 is about 8015.6497553224. The cubic root of 64250641 is about 400.5214885787.

Adding to 64250641 its reverse (14605246), we get a palindrome (78855887).

The spelling of 64250641 in words is "sixty-four million, two hundred fifty thousand, six hundred forty-one".