20451250401 has 8 divisors (see below), whose sum is σ = 27549451104. Its totient is φ = 13493608320.

The previous prime is 20451250363. The next prime is 20451250429. The reversal of 20451250401 is 10405215402.

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

It is not a de Polignac number, because 20451250401 - 2¹³ = 20451242209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20451255401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35139315 + ... + 35139896.

It is an arithmetic number, because the mean of its divisors is an integer number (3443681388).

Almost surely, 2^20451250401 is an apocalyptic number.

It is an amenable number.

20451250401 is a deficient number, since it is larger than the sum of its proper divisors (7098200703).

20451250401 is an equidigital number, since it uses as much as digits as its factorization.

20451250401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70279311.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20451250401 its reverse (10405215402), we get a palindrome (30856465803).

The spelling of 20451250401 in words is "twenty billion, four hundred fifty-one million, two hundred fifty thousand, four hundred one".