51423025044 has 12 divisors (see below), whose sum is σ = 119987058464. Its totient is φ = 17141008344.

The previous prime is 51423025037. The next prime is 51423025061. The reversal of 51423025044 is 44052032415.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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, 2142626032 + ... + 2142626055.

Almost surely, 2^51423025044 is an apocalyptic number.

It is an amenable number.

51423025044 is an abundant number, since it is smaller than the sum of its proper divisors (68564033420).

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

51423025044 is a wasteful number, since it uses less digits than its factorization.

51423025044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285252094 (or 4285252092 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 51423025044 its reverse (44052032415), we get a palindrome (95475057459).

The spelling of 51423025044 in words is "fifty-one billion, four hundred twenty-three million, twenty-five thousand, forty-four".