51550420014 has 12 divisors (see below), whose sum is σ = 111692576736. Its totient is φ = 17183473332.

The previous prime is 51550419979. The next prime is 51550420021. The reversal of 51550420014 is 41002405515.

It is a self number, because there is not a number n which added to its sum of digits gives 51550420014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1431956094 + ... + 1431956129.

It is an arithmetic number, because the mean of its divisors is an integer number (9307714728).

Almost surely, 2^51550420014 is an apocalyptic number.

51550420014 is an abundant number, since it is smaller than the sum of its proper divisors (60142156722).

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

51550420014 is a wasteful number, since it uses less digits than its factorization.

51550420014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863912231 (or 2863912228 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 51550420014 its reverse (41002405515), we get a palindrome (92552825529).

The spelling of 51550420014 in words is "fifty-one billion, five hundred fifty million, four hundred twenty thousand, fourteen".