51263456502 has 16 divisors (see below), whose sum is σ = 107923066560. Its totient is φ = 16188459912.

The previous prime is 51263456449. The next prime is 51263456507. The reversal of 51263456502 is 20565436215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51263456507) 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, 224839608 + ... + 224839835.

It is an arithmetic number, because the mean of its divisors is an integer number (6745191660).

Almost surely, 2^51263456502 is an apocalyptic number.

51263456502 is an abundant number, since it is smaller than the sum of its proper divisors (56659610058).

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

51263456502 is a wasteful number, since it uses less digits than its factorization.

51263456502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449679467.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 51263456502 in words is "fifty-one billion, two hundred sixty-three million, four hundred fifty-six thousand, five hundred two".