653642001 has 8 divisors (see below), whose sum is σ = 968358560. Its totient is φ = 435761316.

The previous prime is 653641999. The next prime is 653642029. The reversal of 653642001 is 100246356.

653642001 is a `hidden beast` number, since 653 + 6 + 4 + 2 + 0 + 0 + 1 = 666.

653642001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 653642001 - 2¹ = 653641999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 24208963 = 653642001 / (6 + 5 + 3 + 6 + 4 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653642051) 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, 12104455 + ... + 12104508.

It is an arithmetic number, because the mean of its divisors is an integer number (121044820).

Almost surely, 2^653642001 is an apocalyptic number.

It is an amenable number.

653642001 is a deficient number, since it is larger than the sum of its proper divisors (314716559).

653642001 is a wasteful number, since it uses less digits than its factorization.

653642001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24208972 (or 24208966 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 653642001 is about 25566.4233126184. The cubic root of 653642001 is about 867.8539615883.

Adding to 653642001 its reverse (100246356), we get a palindrome (753888357).

The spelling of 653642001 in words is "six hundred fifty-three million, six hundred forty-two thousand, one".