51111225350 has 12 divisors (see below), whose sum is σ = 95066879244. Its totient is φ = 20444490120.

The previous prime is 51111225349. The next prime is 51111225371. The reversal of 51111225350 is 5352211115.

It is a super-2 number, since 2×51111225350² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 511112204 + ... + 511112303.

It is an arithmetic number, because the mean of its divisors is an integer number (7922239937).

Almost surely, 2^51111225350 is an apocalyptic number.

51111225350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51111225350 is a deficient number, since it is larger than the sum of its proper divisors (43955653894).

51111225350 is a wasteful number, since it uses less digits than its factorization.

51111225350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022224519 (or 1022224514 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 51111225350 its reverse (5352211115), we get a palindrome (56463436465).

The spelling of 51111225350 in words is "fifty-one billion, one hundred eleven million, two hundred twenty-five thousand, three hundred fifty".