51100422501 has 16 divisors (see below), whose sum is σ = 68218571520. Its totient is φ = 34024643520.

The previous prime is 51100422497. The next prime is 51100422641. The reversal of 51100422501 is 10522400115.

It is not a de Polignac number, because 51100422501 - 2² = 51100422497 is a prime.

It is a super-2 number, since 2×51100422501² (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 (51100422701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14762911 + ... + 14766371.

It is an arithmetic number, because the mean of its divisors is an integer number (4263660720).

Almost surely, 2^51100422501 is an apocalyptic number.

It is an amenable number.

51100422501 is a deficient number, since it is larger than the sum of its proper divisors (17118149019).

51100422501 is a wasteful number, since it uses less digits than its factorization.

51100422501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 51100422501 its reverse (10522400115), we get a palindrome (61622822616).

The spelling of 51100422501 in words is "fifty-one billion, one hundred million, four hundred twenty-two thousand, five hundred one".