51468857 has 8 divisors (see below), whose sum is σ = 56334432. Its totient is φ = 46634400.

The previous prime is 51468841. The next prime is 51468863. The reversal of 51468857 is 75886415.

It is a happy number.

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 51468857 - 2⁴ = 51468841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51468757) 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, 4244 + ... + 10997.

It is an arithmetic number, because the mean of its divisors is an integer number (7041804).

Almost surely, 2^51468857 is an apocalyptic number.

It is an amenable number.

51468857 is a deficient number, since it is larger than the sum of its proper divisors (4865575).

51468857 is a wasteful number, since it uses less digits than its factorization.

51468857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15559.

The product of its digits is 268800, while the sum is 44.

The square root of 51468857 is about 7174.1798834431. The cubic root of 51468857 is about 371.9759325586.

It can be divided in two parts, 51468 and 857, that added together give a palindrome (52325).

The spelling of 51468857 in words is "fifty-one million, four hundred sixty-eight thousand, eight hundred fifty-seven".