20525151336653 has 4 divisors (see below), whose sum is σ = 20525181902400. Its totient is φ = 20525120770908.

The previous prime is 20525151336647. The next prime is 20525151336673. The reversal of 20525151336653 is 35663315152502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20525151336653 - 2³⁰ = 20524077594829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20525151336598 and 20525151336607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525151336643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14252453 + ... + 15626346.

It is an arithmetic number, because the mean of its divisors is an integer number (5131295475600).

Almost surely, 2^{20525151336653} is an apocalyptic number.

It is an amenable number.

20525151336653 is a deficient number, since it is larger than the sum of its proper divisors (30565747).

20525151336653 is an equidigital number, since it uses as much as digits as its factorization.

20525151336653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30565746.

The product of its (nonzero) digits is 2430000, while the sum is 47.

The spelling of 20525151336653 in words is "twenty trillion, five hundred twenty-five billion, one hundred fifty-one million, three hundred thirty-six thousand, six hundred fifty-three".