51441542442 has 12 divisors (see below), whose sum is σ = 111456675330. Its totient is φ = 17147180808.

The previous prime is 51441542437. The next prime is 51441542443. The reversal of 51441542442 is 24424514415.

It can be written as a sum of positive squares in only one way, i.e., 51325355601 + 116186841 = 226551^2 + 10779^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51441542397 and 51441542406.

It is not an unprimeable number, because it can be changed into a prime (51441542443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428931717 + ... + 1428931752.

Almost surely, 2^51441542442 is an apocalyptic number.

51441542442 is an abundant number, since it is smaller than the sum of its proper divisors (60015132888).

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

51441542442 is a wasteful number, since it uses less digits than its factorization.

51441542442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857863477 (or 2857863474 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

The spelling of 51441542442 in words is "fifty-one billion, four hundred forty-one million, five hundred forty-two thousand, four hundred forty-two".