51455158014 has 64 divisors (see below), whose sum is σ = 115672027968. Its totient is φ = 15154713600.

The previous prime is 51455157991. The next prime is 51455158031. The reversal of 51455158014 is 41085155415.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17704 + ... + 321284.

It is an arithmetic number, because the mean of its divisors is an integer number (1807375437).

Almost surely, 2^51455158014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51455158014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57836013984).

51455158014 is an abundant number, since it is smaller than the sum of its proper divisors (64216869954).

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

51455158014 is a wasteful number, since it uses less digits than its factorization.

51455158014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303693.

The product of its (nonzero) digits is 80000, while the sum is 39.

The spelling of 51455158014 in words is "fifty-one billion, four hundred fifty-five million, one hundred fifty-eight thousand, fourteen".