20456255521050 has 48 divisors (see below), whose sum is σ = 50732552149920. Its totient is φ = 5454889810240.

The previous prime is 20456255521033. The next prime is 20456255521111. The reversal of 20456255521050 is 5012555265402.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20456255520993 and 20456255521011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6089944 + ... + 8831756.

It is an arithmetic number, because the mean of its divisors is an integer number (1056928169790).

Almost surely, 2^{20456255521050} is an apocalyptic number.

20456255521050 is an abundant number, since it is smaller than the sum of its proper divisors (30276296628870).

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

20456255521050 is a wasteful number, since it uses less digits than its factorization.

20456255521050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791567 (or 2791562 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 20456255521050 in words is "twenty trillion, four hundred fifty-six billion, two hundred fifty-five million, five hundred twenty-one thousand, fifty".