20552505364 has 12 divisors (see below), whose sum is σ = 37127106688. Its totient is φ = 9944760600.

The previous prime is 20552505353. The next prime is 20552505367. The reversal of 20552505364 is 46350525502.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552505367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82872882 + ... + 82873129.

Almost surely, 2^20552505364 is an apocalyptic number.

It is an amenable number.

20552505364 is a deficient number, since it is larger than the sum of its proper divisors (16574601324).

20552505364 is a wasteful number, since it uses less digits than its factorization.

20552505364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165746046 (or 165746044 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 20552505364 in words is "twenty billion, five hundred fifty-two million, five hundred five thousand, three hundred sixty-four".