51522142011 has 24 divisors (see below), whose sum is σ = 72323208720. Its totient is φ = 32612823360.

The previous prime is 51522141971. The next prime is 51522142079. The reversal of 51522142011 is 11024122515.

It is a happy number.

It is not a de Polignac number, because 51522142011 - 2⁶ = 51522141947 is a prime.

It is a super-2 number, since 2×51522142011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51522242011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15796 + ... + 321393.

It is an arithmetic number, because the mean of its divisors is an integer number (3013467030).

Almost surely, 2^51522142011 is an apocalyptic number.

51522142011 is a deficient number, since it is larger than the sum of its proper divisors (20801066709).

51522142011 is a wasteful number, since it uses less digits than its factorization.

51522142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337307 (or 337276 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 51522142011 its reverse (11024122515), we get a palindrome (62546264526).

The spelling of 51522142011 in words is "fifty-one billion, five hundred twenty-two million, one hundred forty-two thousand, eleven".