20554703252 has 6 divisors (see below), whose sum is σ = 35970730698. Its totient is φ = 10277351624.

The previous prime is 20554703219. The next prime is 20554703261. The reversal of 20554703252 is 25230745502.

It can be written as a sum of positive squares in only one way, i.e., 15816583696 + 4738119556 = 125764^2 + 68834^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569337903 + ... + 2569337910.

It is an arithmetic number, because the mean of its divisors is an integer number (5995121783).

Almost surely, 2^20554703252 is an apocalyptic number.

It is an amenable number.

20554703252 is a deficient number, since it is larger than the sum of its proper divisors (15416027446).

20554703252 is a wasteful number, since it uses less digits than its factorization.

20554703252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138675817 (or 5138675815 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 35.

The spelling of 20554703252 in words is "twenty billion, five hundred fifty-four million, seven hundred three thousand, two hundred fifty-two".