51542142213 has 16 divisors (see below), whose sum is σ = 72595489280. Its totient is φ = 32437893744.

The previous prime is 51542142203. The next prime is 51542142233. The reversal of 51542142213 is 31224124515.

It is not a de Polignac number, because 51542142213 - 2¹⁴ = 51542125829 is a prime.

It is a super-3 number, since 3×51542142213³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51542142203) 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, 1581481 + ... + 1613742.

It is an arithmetic number, because the mean of its divisors is an integer number (4537218080).

Almost surely, 2^51542142213 is an apocalyptic number.

It is an amenable number.

51542142213 is a deficient number, since it is larger than the sum of its proper divisors (21053347067).

51542142213 is a wasteful number, since it uses less digits than its factorization.

51542142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195528.

The product of its digits is 9600, while the sum is 30.

Adding to 51542142213 its reverse (31224124515), we get a palindrome (82766266728).

The spelling of 51542142213 in words is "fifty-one billion, five hundred forty-two million, one hundred forty-two thousand, two hundred thirteen".