51521330410 has 32 divisors (see below), whose sum is σ = 101178891072. Its totient is φ = 18733226880.

The previous prime is 51521330387. The next prime is 51521330423. The reversal of 51521330410 is 1403312515.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774974 + ... + 1803766.

It is an arithmetic number, because the mean of its divisors is an integer number (3161840346).

Almost surely, 2^51521330410 is an apocalyptic number.

51521330410 is a deficient number, since it is larger than the sum of its proper divisors (49657560662).

51521330410 is a wasteful number, since it uses less digits than its factorization.

51521330410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45078.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 51521330410 its reverse (1403312515), we get a palindrome (52924642925).

The spelling of 51521330410 in words is "fifty-one billion, five hundred twenty-one million, three hundred thirty thousand, four hundred ten".