20412553500 has 96 divisors (see below), whose sum is σ = 66045994560. Its totient is φ = 5443344000.

The previous prime is 20412553471. The next prime is 20412553501. The reversal of 20412553500 is 535521402.

It is a happy number.

20412553500 is a `hidden beast` number, since 2 + 0 + 4 + 125 + 535 + 0 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412553501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 742521 + ... + 769520.

It is an arithmetic number, because the mean of its divisors is an integer number (687979110).

Almost surely, 2^20412553500 is an apocalyptic number.

20412553500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20412553500 is an abundant number, since it is smaller than the sum of its proper divisors (45633441060).

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

20412553500 is a wasteful number, since it uses less digits than its factorization.

20412553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512069 (or 1512051 counting only the distinct ones).

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

The spelling of 20412553500 in words is "twenty billion, four hundred twelve million, five hundred fifty-three thousand, five hundred".