51411205320 has 64 divisors (see below), whose sum is σ = 154907208000. Its totient is φ = 13649779968.

The previous prime is 51411205303. The next prime is 51411205327. The reversal of 51411205320 is 2350211415.

It is a happy number.

It is a super-2 number, since 2×51411205320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (51411205327) 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 15 ways as a sum of consecutive naturals, for example, 907950 + ... + 962909.

It is an arithmetic number, because the mean of its divisors is an integer number (2420425125).

Almost surely, 2^51411205320 is an apocalyptic number.

It is an amenable number.

51411205320 is an abundant number, since it is smaller than the sum of its proper divisors (103496002680).

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

51411205320 is a wasteful number, since it uses less digits than its factorization.

51411205320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871102 (or 1871098 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 51411205320 its reverse (2350211415), we get a palindrome (53761416735).

The spelling of 51411205320 in words is "fifty-one billion, four hundred eleven million, two hundred five thousand, three hundred twenty".