51405677 has 8 divisors (see below), whose sum is σ = 52769472. Its totient is φ = 50047200.

The previous prime is 51405647. The next prime is 51405701. The reversal of 51405677 is 77650415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51405677 - 2¹⁴ = 51389293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51405647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24878 + ... + 26864.

It is an arithmetic number, because the mean of its divisors is an integer number (6596184).

Almost surely, 2^51405677 is an apocalyptic number.

It is an amenable number.

51405677 is a deficient number, since it is larger than the sum of its proper divisors (1363795).

51405677 is a wasteful number, since it uses less digits than its factorization.

51405677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 51405677 is about 7169.7752405497. The cubic root of 51405677 is about 371.8236653194.

The spelling of 51405677 in words is "fifty-one million, four hundred five thousand, six hundred seventy-seven".