20051401325 has 6 divisors (see below), whose sum is σ = 24863737674. Its totient is φ = 16041121040.

The previous prime is 20051401319. The next prime is 20051401339. The reversal of 20051401325 is 52310415002.

It can be written as a sum of positive squares in 3 ways, for example, as 157427209 + 19893974116 = 12547^2 + 141046^2 .

It is not a de Polignac number, because 20051401325 - 2⁶ = 20051401261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20051401325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401028002 + ... + 401028051.

It is an arithmetic number, because the mean of its divisors is an integer number (4143956279).

Almost surely, 2^20051401325 is an apocalyptic number.

20051401325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20051401325 is a deficient number, since it is larger than the sum of its proper divisors (4812336349).

20051401325 is an equidigital number, since it uses as much as digits as its factorization.

20051401325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802056063 (or 802056058 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20051401325 its reverse (52310415002), we get a palindrome (72361816327).

The spelling of 20051401325 in words is "twenty billion, fifty-one million, four hundred one thousand, three hundred twenty-five".