510012420500 has 96 divisors (see below), whose sum is σ = 1217901484800. Its totient is φ = 185035728000.

The previous prime is 510012420497. The next prime is 510012420553. The reversal of 510012420500 is 5024210015.

It is a super-2 number, since 2×510012420500² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2308886 + ... + 2520114.

It is an arithmetic number, because the mean of its divisors is an integer number (12686473800).

Almost surely, 2^510012420500 is an apocalyptic number.

510012420500 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 510012420500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608950742400).

510012420500 is an abundant number, since it is smaller than the sum of its proper divisors (707889064300).

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

510012420500 is a wasteful number, since it uses less digits than its factorization.

510012420500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211698 (or 211686 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 510012420500 its reverse (5024210015), we get a palindrome (515036630515).

The spelling of 510012420500 in words is "five hundred ten billion, twelve million, four hundred twenty thousand, five hundred".