51262266000 has 320 divisors, whose sum is σ = 189787852800. Its totient is φ = 11772864000.

The previous prime is 51262265983. The next prime is 51262266007. The reversal of 51262266000 is 66226215.

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

It is not an unprimeable number, because it can be changed into a prime (51262266007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1233561 + ... + 1274439.

It is an arithmetic number, because the mean of its divisors is an integer number (593087040).

Almost surely, 2^51262266000 is an apocalyptic number.

51262266000 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 51262266000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94893926400).

51262266000 is an abundant number, since it is smaller than the sum of its proper divisors (138525586800).

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

51262266000 is a wasteful number, since it uses less digits than its factorization.

51262266000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40935 (or 40919 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 51262266000 in words is "fifty-one billion, two hundred sixty-two million, two hundred sixty-six thousand".