20562255000 has 400 divisors, whose sum is σ = 82261230480. Its totient is φ = 4699296000.

The previous prime is 20562254941. The next prime is 20562255101. The reversal of 20562255000 is 55226502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 2831374 + ... + 2838626.

Almost surely, 2^20562255000 is an apocalyptic number.

20562255000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20562255000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41130615240).

20562255000 is an abundant number, since it is smaller than the sum of its proper divisors (61698975480).

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

20562255000 is an equidigital number, since it uses as much as digits as its factorization.

20562255000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298 (or 7270 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 20562255000 in words is "twenty billion, five hundred sixty-two million, two hundred fifty-five thousand".