51504324402 has 16 divisors (see below), whose sum is σ = 103106858400. Its totient is φ = 17151739872.

The previous prime is 51504324359. The next prime is 51504324427. The reversal of 51504324402 is 20442340515.

It is a self number, because there is not a number n which added to its sum of digits gives 51504324402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4085248 + ... + 4097835.

It is an arithmetic number, because the mean of its divisors is an integer number (6444178650).

Almost surely, 2^51504324402 is an apocalyptic number.

51504324402 is an abundant number, since it is smaller than the sum of its proper divisors (51602533998).

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

51504324402 is a wasteful number, since it uses less digits than its factorization.

51504324402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8184137.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 51504324402 its reverse (20442340515), we get a palindrome (71946664917).

The spelling of 51504324402 in words is "fifty-one billion, five hundred four million, three hundred twenty-four thousand, four hundred two".