51022510542 has 24 divisors (see below), whose sum is σ = 111007490880. Its totient is φ = 16936931520.

The previous prime is 51022510541. The next prime is 51022510579. The reversal of 51022510542 is 24501522015.

51022510542 is a `hidden beast` number, since 5 + 102 + 2 + 5 + 10 + 542 = 666.

It is a super-2 number, since 2×51022510542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51022510541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5876542 + ... + 5885217.

It is an arithmetic number, because the mean of its divisors is an integer number (4625312120).

Almost surely, 2^51022510542 is an apocalyptic number.

51022510542 is an abundant number, since it is smaller than the sum of its proper divisors (59984980338).

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

51022510542 is a wasteful number, since it uses less digits than its factorization.

51022510542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11762008 (or 11762005 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 51022510542 in words is "fifty-one billion, twenty-two million, five hundred ten thousand, five hundred forty-two".