64650051 has 12 divisors (see below), whose sum is σ = 95370912. Its totient is φ = 42182736.

The previous prime is 64650049. The next prime is 64650059. The reversal of 64650051 is 15005646.

It is a happy number.

64650051 is a `hidden beast` number, since 6 + 4 + 650 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 64650051 - 2¹ = 64650049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64649997 and 64650024.

It is not an unprimeable number, because it can be changed into a prime (64650059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75996 + ... + 76841.

It is an arithmetic number, because the mean of its divisors is an integer number (7947576).

Almost surely, 2^64650051 is an apocalyptic number.

64650051 is a deficient number, since it is larger than the sum of its proper divisors (30720861).

64650051 is a wasteful number, since it uses less digits than its factorization.

64650051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152890 (or 152887 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 64650051 is about 8040.5255425252. The cubic root of 64650051 is about 401.3497134780.

Adding to 64650051 its reverse (15005646), we get a palindrome (79655697).

The spelling of 64650051 in words is "sixty-four million, six hundred fifty thousand, fifty-one".