501234145500 has 384 divisors, whose sum is σ = 1774700928000. Its totient is φ = 108343296000.

The previous prime is 501234145499. The next prime is 501234145541. The reversal of 501234145500 is 5541432105.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5282476 + ... + 5376524.

It is an arithmetic number, because the mean of its divisors is an integer number (4621617000).

Almost surely, 2^501234145500 is an apocalyptic number.

501234145500 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 501234145500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887350464000).

501234145500 is an abundant number, since it is smaller than the sum of its proper divisors (1273466782500).

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

501234145500 is a wasteful number, since it uses less digits than its factorization.

501234145500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94118 (or 94106 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 501234145500 its reverse (5541432105), we get a palindrome (506775577605).

The spelling of 501234145500 in words is "five hundred one billion, two hundred thirty-four million, one hundred forty-five thousand, five hundred".