51504451352 has 8 divisors (see below), whose sum is σ = 96570846300. Its totient is φ = 25752225672.

The previous prime is 51504451321. The next prime is 51504451367. The reversal of 51504451352 is 25315440515.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent 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 as a sum of consecutive naturals, namely, 3219028202 + ... + 3219028217.

Almost surely, 2^51504451352 is an apocalyptic number.

It is an amenable number.

51504451352 is a deficient number, since it is larger than the sum of its proper divisors (45066394948).

51504451352 is a wasteful number, since it uses less digits than its factorization.

51504451352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438056425 (or 6438056421 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 51504451352 its reverse (25315440515), we get a palindrome (76819891867).

The spelling of 51504451352 in words is "fifty-one billion, five hundred four million, four hundred fifty-one thousand, three hundred fifty-two".