20380576554425 has 18 divisors (see below), whose sum is σ = 25385751641502. Its totient is φ = 16231346077440.

The previous prime is 20380576554413. The next prime is 20380576554449. The reversal of 20380576554425 is 52445567508302.

It can be written as a sum of positive squares in 3 ways, for example, as 40909512121 + 20339667042304 = 202261^2 + 4509952^2 .

It is not a de Polignac number, because 20380576554425 - 2²² = 20380572360121 is a prime.

It is a super-3 number, since 3×20380576554425³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6953432 + ... + 9439881.

It is an arithmetic number, because the mean of its divisors is an integer number (1410319535639).

Almost surely, 2^{20380576554425} is an apocalyptic number.

20380576554425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20380576554425 is a deficient number, since it is larger than the sum of its proper divisors (5005175087077).

20380576554425 is an equidigital number, since it uses as much as digits as its factorization.

20380576554425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16393769 (or 16393541 counting only the distinct ones).

The product of its (nonzero) digits is 40320000, while the sum is 56.

The spelling of 20380576554425 in words is "twenty trillion, three hundred eighty billion, five hundred seventy-six million, five hundred fifty-four thousand, four hundred twenty-five".