20133388358225 has 12 divisors (see below), whose sum is σ = 25266189537456. Its totient is φ = 15912653929680.

The previous prime is 20133388358203. The next prime is 20133388358231. The reversal of 20133388358225 is 52285388333102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20133388358225 is a prime.

It is a Duffinian 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, 4851416807 + ... + 4851420956.

It is an arithmetic number, because the mean of its divisors is an integer number (2105515794788).

Almost surely, 2^{20133388358225} is an apocalyptic number.

20133388358225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20133388358225 is a deficient number, since it is larger than the sum of its proper divisors (5132801179231).

20133388358225 is an equidigital number, since it uses as much as digits as its factorization.

20133388358225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702837856 (or 9702837851 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 20133388358225 in words is "twenty trillion, one hundred thirty-three billion, three hundred eighty-eight million, three hundred fifty-eight thousand, two hundred twenty-five".