20553251124024 has 128 divisors (see below), whose sum is σ = 59720306112000. Its totient is φ = 6537187337472.

The previous prime is 20553251123971. The next prime is 20553251124031. The reversal of 20553251124024 is 42042115235502.

20553251124024 is a `hidden beast` number, since 2 + 0 + 5 + 532 + 5 + 112 + 4 + 0 + 2 + 4 = 666.

It is a super-2 number, since 2×20553251124024² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20553251124024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3025702 + ... + 7089525.

It is an arithmetic number, because the mean of its divisors is an integer number (466564891500).

Almost surely, 2^{20553251124024} is an apocalyptic number.

20553251124024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20553251124024 is an abundant number, since it is smaller than the sum of its proper divisors (39167054987976).

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

20553251124024 is a wasteful number, since it uses less digits than its factorization.

20553251124024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115674 (or 10115664 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 20553251124024 its reverse (42042115235502), we get a palindrome (62595366359526).

The spelling of 20553251124024 in words is "twenty trillion, five hundred fifty-three billion, two hundred fifty-one million, one hundred twenty-four thousand, twenty-four".