20001403425 has 48 divisors (see below), whose sum is σ = 33817835520. Its totient is φ = 10426463040.

The previous prime is 20001403351. The next prime is 20001403447. The reversal of 20001403425 is 52430410002.

It is not a de Polignac number, because 20001403425 - 2⁹ = 20001402913 is a prime.

It is a super-2 number, since 2×20001403425² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2954094 + ... + 2960856.

It is an arithmetic number, because the mean of its divisors is an integer number (704538240).

Almost surely, 2^20001403425 is an apocalyptic number.

20001403425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20001403425 is a deficient number, since it is larger than the sum of its proper divisors (13816432095).

20001403425 is a wasteful number, since it uses less digits than its factorization.

20001403425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7662 (or 7657 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20001403425 its reverse (52430410002), we get a palindrome (72431813427).

The spelling of 20001403425 in words is "twenty billion, one million, four hundred three thousand, four hundred twenty-five".