20210455254 has 16 divisors (see below), whose sum is σ = 44095538880. Its totient is φ = 6124380360.

The previous prime is 20210455169. The next prime is 20210455271. The reversal of 20210455254 is 45255401202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153109444 + ... + 153109575.

It is an arithmetic number, because the mean of its divisors is an integer number (2755971180).

Almost surely, 2^20210455254 is an apocalyptic number.

20210455254 is an abundant number, since it is smaller than the sum of its proper divisors (23885083626).

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

20210455254 is a wasteful number, since it uses less digits than its factorization.

20210455254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306219035.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 20210455254 its reverse (45255401202), we get a palindrome (65465856456).

The spelling of 20210455254 in words is "twenty billion, two hundred ten million, four hundred fifty-five thousand, two hundred fifty-four".