51662326620252 has 48 divisors (see below), whose sum is σ = 125972334738432. Its totient is φ = 16447715169600.

The previous prime is 51662326620199. The next prime is 51662326620257. The reversal of 51662326620252 is 25202662326615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51662326620257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138057124 + ... + 138430827.

It is an arithmetic number, because the mean of its divisors is an integer number (2624423640384).

Almost surely, 2^{51662326620252} is an apocalyptic number.

It is an amenable number.

51662326620252 is an abundant number, since it is smaller than the sum of its proper divisors (74310008118180).

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

51662326620252 is a wasteful number, since it uses less digits than its factorization.

51662326620252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276488658 (or 276488656 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

Adding to 51662326620252 its reverse (25202662326615), we get a palindrome (76864988946867).

The spelling of 51662326620252 in words is "fifty-one trillion, six hundred sixty-two billion, three hundred twenty-six million, six hundred twenty thousand, two hundred fifty-two".