20355000263525 has 12 divisors (see below), whose sum is σ = 25240263286500. Its totient is φ = 16283959591680.

The previous prime is 20355000263513. The next prime is 20355000263551. The reversal of 20355000263525 is 52536200055302.

It can be written as a sum of positive squares in 6 ways, for example, as 5068018503076 + 15286981760449 = 2251226^2 + 3909857^2 .

It is not a de Polignac number, because 20355000263525 - 2¹⁶ = 20355000197989 is a prime.

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, 13000571 + ... + 14481879.

It is an arithmetic number, because the mean of its divisors is an integer number (2103355273875).

Almost surely, 2^{20355000263525} is an apocalyptic number.

20355000263525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20355000263525 is a deficient number, since it is larger than the sum of its proper divisors (4885263022975).

20355000263525 is a wasteful number, since it uses less digits than its factorization.

20355000263525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030968 (or 2030963 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 20355000263525 in words is "twenty trillion, three hundred fifty-five billion, two hundred sixty-three thousand, five hundred twenty-five".