20525455121430 has 64 divisors (see below), whose sum is σ = 58114468343808. Its totient is φ = 4540192836480.

The previous prime is 20525455121401. The next prime is 20525455121447. The reversal of 20525455121430 is 3412155452502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1576449337 + ... + 1576462356.

It is an arithmetic number, because the mean of its divisors is an integer number (908038567872).

Almost surely, 2^{20525455121430} is an apocalyptic number.

20525455121430 is an abundant number, since it is smaller than the sum of its proper divisors (37589013222378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20525455121430 is a wasteful number, since it uses less digits than its factorization.

20525455121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152911741.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 20525455121430 in words is "twenty trillion, five hundred twenty-five billion, four hundred fifty-five million, one hundred twenty-one thousand, four hundred thirty".