20286020401925 has 12 divisors (see below), whose sum is σ = 25252543381476. Its totient is φ = 16165669171200.

The previous prime is 20286020401849. The next prime is 20286020401951. The reversal of 20286020401925 is 52910402068202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1513020542401 + 18772999859524 = 1230049^2 + 4332782^2 .

It is not a de Polignac number, because 20286020401925 - 2¹² = 20286020397829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1578672206 + ... + 1578685055.

It is an arithmetic number, because the mean of its divisors is an integer number (2104378615123).

Almost surely, 2^{20286020401925} is an apocalyptic number.

20286020401925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20286020401925 is a deficient number, since it is larger than the sum of its proper divisors (4966522979551).

20286020401925 is a wasteful number, since it uses less digits than its factorization.

20286020401925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157357528 (or 3157357523 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20286020401925 in words is "twenty trillion, two hundred eighty-six billion, twenty million, four hundred one thousand, nine hundred twenty-five".