51522042141 has 16 divisors (see below), whose sum is σ = 76332859200. Its totient is φ = 34346269584.

The previous prime is 51522042139. The next prime is 51522042179. The reversal of 51522042141 is 14124022515.

It is a happy number.

51522042141 is a `hidden beast` number, since 5 + 15 + 220 + 421 + 4 + 1 = 666.

It is not a de Polignac number, because 51522042141 - 2¹ = 51522042139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51522042941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693295 + ... + 764003.

It is an arithmetic number, because the mean of its divisors is an integer number (4770803700).

Almost surely, 2^51522042141 is an apocalyptic number.

It is an amenable number.

51522042141 is a deficient number, since it is larger than the sum of its proper divisors (24810817059).

51522042141 is a wasteful number, since it uses less digits than its factorization.

51522042141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97705 (or 97699 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 51522042141 its reverse (14124022515), we get a palindrome (65646064656).

The spelling of 51522042141 in words is "fifty-one billion, five hundred twenty-two million, forty-two thousand, one hundred forty-one".