64050621 has 8 divisors (see below), whose sum is σ = 85627680. Its totient is φ = 42586992.

The previous prime is 64050599. The next prime is 64050629. The reversal of 64050621 is 12605046.

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

It is not a de Polignac number, because 64050621 - 2¹⁸ = 63788477 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64050591 and 64050600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64050629) 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, 27030 + ... + 29303.

It is an arithmetic number, because the mean of its divisors is an integer number (10703460).

Almost surely, 2^64050621 is an apocalyptic number.

It is an amenable number.

64050621 is a deficient number, since it is larger than the sum of its proper divisors (21577059).

64050621 is a wasteful number, since it uses less digits than its factorization.

64050621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56715.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 64050621 is about 8003.1631871404. The cubic root of 64050621 is about 400.1054326241.

Adding to 64050621 its reverse (12605046), we get a palindrome (76655667).

The spelling of 64050621 in words is "sixty-four million, fifty thousand, six hundred twenty-one".