51205513310 has 32 divisors (see below), whose sum is σ = 105349800960. Its totient is φ = 17554051872.

The previous prime is 51205513301. The next prime is 51205513339. The reversal of 51205513310 is 1331550215.

It is a happy number.

It is a super-2 number, since 2×51205513310² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51205513310.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606251 + ... + 685529.

It is an arithmetic number, because the mean of its divisors is an integer number (3292181280).

Almost surely, 2^51205513310 is an apocalyptic number.

51205513310 is an abundant number, since it is smaller than the sum of its proper divisors (54144287650).

51205513310 is a wasteful number, since it uses less digits than its factorization.

51205513310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88520.

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 51205513310 in words is "fifty-one billion, two hundred five million, five hundred thirteen thousand, three hundred ten".