51677471 has 4 divisors (see below), whose sum is σ = 51721152. Its totient is φ = 51633792.

The previous prime is 51677459. The next prime is 51677519. The reversal of 51677471 is 17477615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51677471 - 2⁶ = 51677407 is a prime.

It is a super-3 number, since 3×51677471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51677071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20015 + ... + 22448.

It is an arithmetic number, because the mean of its divisors is an integer number (12930288).

Almost surely, 2^51677471 is an apocalyptic number.

51677471 is a deficient number, since it is larger than the sum of its proper divisors (43681).

51677471 is a wasteful number, since it uses less digits than its factorization.

51677471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43680.

The product of its digits is 41160, while the sum is 38.

The square root of 51677471 is about 7188.7044034374. The cubic root of 51677471 is about 372.4778203991.

The spelling of 51677471 in words is "fifty-one million, six hundred seventy-seven thousand, four hundred seventy-one".