51963552393 has 8 divisors (see below), whose sum is σ = 69287197056. Its totient is φ = 34641138000.

The previous prime is 51963552379. The next prime is 51963552449. The reversal of 51963552393 is 39325536915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51963552393 - 2²⁵ = 51929997961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51963552373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204033 + ... + 381518.

It is an arithmetic number, because the mean of its divisors is an integer number (8660899632).

Almost surely, 2^51963552393 is an apocalyptic number.

It is an amenable number.

51963552393 is a deficient number, since it is larger than the sum of its proper divisors (17323644663).

51963552393 is a wasteful number, since it uses less digits than its factorization.

51963552393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615135.

The product of its digits is 3280500, while the sum is 51.

The spelling of 51963552393 in words is "fifty-one billion, nine hundred sixty-three million, five hundred fifty-two thousand, three hundred ninety-three".