51679091 has 8 divisors (see below), whose sum is σ = 53998080. Its totient is φ = 49366152.

The previous prime is 51679087. The next prime is 51679093. The reversal of 51679091 is 19097615.

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 51679091 - 2² = 51679087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51679093) 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, 31940 + ... + 33518.

It is an arithmetic number, because the mean of its divisors is an integer number (6749760).

Almost surely, 2^51679091 is an apocalyptic number.

51679091 is a deficient number, since it is larger than the sum of its proper divisors (2318989).

51679091 is a wasteful number, since it uses less digits than its factorization.

51679091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 51679091 is about 7188.8170793254. The cubic root of 51679091 is about 372.4817125385.

The spelling of 51679091 in words is "fifty-one million, six hundred seventy-nine thousand, ninety-one".