51572656424630 has 48 divisors (see below), whose sum is σ = 102246663083040. Its totient is φ = 18715184421120.

The previous prime is 51572656424599. The next prime is 51572656424633. The reversal of 51572656424630 is 3642465627515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51572656424633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43170515 + ... + 44349054.

It is an arithmetic number, because the mean of its divisors is an integer number (2130138814230).

Almost surely, 2^{51572656424630} is an apocalyptic number.

51572656424630 is a deficient number, since it is larger than the sum of its proper divisors (50674006658410).

51572656424630 is a wasteful number, since it uses less digits than its factorization.

51572656424630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87520085 (or 87520074 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 51572656424630 in words is "fifty-one trillion, five hundred seventy-two billion, six hundred fifty-six million, four hundred twenty-four thousand, six hundred thirty".