51541420000 has 120 divisors (see below), whose sum is σ = 144914250096. Its totient is φ = 17671296000.

The previous prime is 51541419983. The next prime is 51541420001. The reversal of 51541420000 is 2414515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51541420001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44077 + ... + 324076.

Almost surely, 2^51541420000 is an apocalyptic number.

51541420000 is a gapful number since it is divisible by the number (50) 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 51541420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72457125048).

51541420000 is an abundant number, since it is smaller than the sum of its proper divisors (93372830096).

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

51541420000 is an equidigital number, since it uses as much as digits as its factorization.

51541420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368190 (or 368167 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 51541420000 its reverse (2414515), we get a palindrome (51543834515).

The spelling of 51541420000 in words is "fifty-one billion, five hundred forty-one million, four hundred twenty thousand".