51523225050 has 96 divisors (see below), whose sum is σ = 139753823040. Its totient is φ = 12458214400.

The previous prime is 51523225043. The next prime is 51523225069. The reversal of 51523225050 is 5052232515.

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

It is a junction number, because it is equal to n+sod(n) for n = 51523224999 and 51523225017.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 601714 + ... + 681986.

It is an arithmetic number, because the mean of its divisors is an integer number (1455768990).

Almost surely, 2^51523225050 is an apocalyptic number.

51523225050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51523225050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69876911520).

51523225050 is an abundant number, since it is smaller than the sum of its proper divisors (88230597990).

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

51523225050 is a wasteful number, since it uses less digits than its factorization.

51523225050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80688 (or 80683 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 51523225050 its reverse (5052232515), we get a palindrome (56575457565).

The spelling of 51523225050 in words is "fifty-one billion, five hundred twenty-three million, two hundred twenty-five thousand, fifty".