20046887225 has 6 divisors (see below), whose sum is σ = 24858140190. Its totient is φ = 16037509760.

The previous prime is 20046887209. The next prime is 20046887233. The reversal of 20046887225 is 52278864002.

It can be written as a sum of positive squares in 3 ways, for example, as 3875187001 + 16171700224 = 62251^2 + 127168^2 .

It is not a de Polignac number, because 20046887225 - 2⁴ = 20046887209 is a prime.

It is a super-3 number, since 3×20046887225³ (a number of 32 digits) contains 333 as substring.

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, 400937720 + ... + 400937769.

It is an arithmetic number, because the mean of its divisors is an integer number (4143023365).

Almost surely, 2^20046887225 is an apocalyptic number.

20046887225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20046887225 is a deficient number, since it is larger than the sum of its proper divisors (4811252965).

20046887225 is an equidigital number, since it uses as much as digits as its factorization.

20046887225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801875499 (or 801875494 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 20046887225 in words is "twenty billion, forty-six million, eight hundred eighty-seven thousand, two hundred twenty-five".