51504122330 has 32 divisors (see below), whose sum is σ = 94804992000. Its totient is φ = 20136680320.

The previous prime is 51504122321. The next prime is 51504122347. The reversal of 51504122330 is 3322140515.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51504122330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285671 + ... + 429669.

It is an arithmetic number, because the mean of its divisors is an integer number (2962656000).

Almost surely, 2^51504122330 is an apocalyptic number.

51504122330 is a deficient number, since it is larger than the sum of its proper divisors (43300869670).

51504122330 is a wasteful number, since it uses less digits than its factorization.

51504122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144814.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 51504122330 its reverse (3322140515), we get a palindrome (54826262845).

The spelling of 51504122330 in words is "fifty-one billion, five hundred four million, one hundred twenty-two thousand, three hundred thirty".