51211677 has 12 divisors (see below), whose sum is σ = 75054560. Its totient is φ = 31037160.

The previous prime is 51211627. The next prime is 51211679. The reversal of 51211677 is 77611215.

It is not a de Polignac number, because 51211677 - 2⁶ = 51211613 is a prime.

It is a super-2 number, since 2×51211677² = 5245271722304658, 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 (51211679) 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, 70177 + ... + 70902.

Almost surely, 2^51211677 is an apocalyptic number.

It is an amenable number.

51211677 is a deficient number, since it is larger than the sum of its proper divisors (23842883).

51211677 is a wasteful number, since it uses less digits than its factorization.

51211677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141104 (or 141093 counting only the distinct ones).

The product of its digits is 2940, while the sum is 30.

The square root of 51211677 is about 7156.2334366621. The cubic root of 51211677 is about 371.3553336228.

The spelling of 51211677 in words is "fifty-one million, two hundred eleven thousand, six hundred seventy-seven".