51455226624 has 36 divisors (see below), whose sum is σ = 136945943736. Its totient is φ = 17151741952.

The previous prime is 51455226601. The next prime is 51455226701. The reversal of 51455226624 is 42662255415.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33498729 + ... + 33500264.

Almost surely, 2^51455226624 is an apocalyptic number.

It is an amenable number.

51455226624 is an abundant number, since it is smaller than the sum of its proper divisors (85490717112).

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

51455226624 is an equidigital number, since it uses as much as digits as its factorization.

51455226624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66999012 (or 66998998 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The spelling of 51455226624 in words is "fifty-one billion, four hundred fifty-five million, two hundred twenty-six thousand, six hundred twenty-four".