20353001 has 4 divisors (see below), whose sum is σ = 20438400. Its totient is φ = 20267604.

The previous prime is 20352991. The next prime is 20353027. The reversal of 20353001 is 10035302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20353001 - 2²² = 16158697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20353901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42341 + ... + 42818.

It is an arithmetic number, because the mean of its divisors is an integer number (5109600).

Almost surely, 2^20353001 is an apocalyptic number.

It is an amenable number.

20353001 is a deficient number, since it is larger than the sum of its proper divisors (85399).

20353001 is an equidigital number, since it uses as much as digits as its factorization.

20353001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85398.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 20353001 is about 4511.4300393556. The cubic root of 20353001 is about 273.0294439746.

Adding to 20353001 its reverse (10035302), we get a palindrome (30388303).

The spelling of 20353001 in words is "twenty million, three hundred fifty-three thousand, one".