51106311 has 12 divisors (see below), whose sum is σ = 73888360. Its totient is φ = 34039440.

The previous prime is 51106291. The next prime is 51106339. The reversal of 51106311 is 11360115.

It is not a de Polignac number, because 51106311 - 2⁷ = 51106183 is a prime.

It is a super-2 number, since 2×51106311² = 5223710048057442, which contains 22 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 (51106411) 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, 11925 + ... + 15633.

Almost surely, 2^51106311 is an apocalyptic number.

51106311 is a deficient number, since it is larger than the sum of its proper divisors (22782049).

51106311 is a wasteful number, since it uses less digits than its factorization.

51106311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 51106311 is about 7148.8678124581. The cubic root of 51106311 is about 371.1004757856.

Adding to 51106311 its reverse (11360115), we get a palindrome (62466426).

The spelling of 51106311 in words is "fifty-one million, one hundred six thousand, three hundred eleven".