51263415256254 has 16 divisors (see below), whose sum is σ = 104461299013392. Its totient is φ = 16765393668608.

The previous prime is 51263415256231. The next prime is 51263415256381. The reversal of 51263415256254 is 45265251436215.

It is a super-2 number, since 2×51263415256254² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51263415256197 and 51263415256206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80602853859 + ... + 80602854494.

It is an arithmetic number, because the mean of its divisors is an integer number (6528831188337).

Almost surely, 2^{51263415256254} is an apocalyptic number.

51263415256254 is an abundant number, since it is smaller than the sum of its proper divisors (53197883757138).

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

51263415256254 is a wasteful number, since it uses less digits than its factorization.

51263415256254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161205708411.

The product of its digits is 8640000, while the sum is 51.

The spelling of 51263415256254 in words is "fifty-one trillion, two hundred sixty-three billion, four hundred fifteen million, two hundred fifty-six thousand, two hundred fifty-four".