20350254400 has 84 divisors (see below), whose sum is σ = 57227854048. Its totient is φ = 6977226240.

The previous prime is 20350254391. The next prime is 20350254443. The reversal of 20350254400 is 445205302.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897294 + ... + 919693.

Almost surely, 2^20350254400 is an apocalyptic number.

20350254400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350254400 is an abundant number, since it is smaller than the sum of its proper divisors (36877599648).

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

20350254400 is a wasteful number, since it uses less digits than its factorization.

20350254400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817016 (or 1817001 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 20350254400 its reverse (445205302), we get a palindrome (20795459702).

The spelling of 20350254400 in words is "twenty billion, three hundred fifty million, two hundred fifty-four thousand, four hundred".