51822851 has 8 divisors (see below), whose sum is σ = 55376640. Its totient is φ = 48325248.

The previous prime is 51822847. The next prime is 51822857. The reversal of 51822851 is 15822815.

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 51822851 - 2² = 51822847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51822857) 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, 12131 + ... + 15836.

It is an arithmetic number, because the mean of its divisors is an integer number (6922080).

Almost surely, 2^51822851 is an apocalyptic number.

51822851 is a deficient number, since it is larger than the sum of its proper divisors (3553789).

51822851 is a wasteful number, since it uses less digits than its factorization.

51822851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28093.

The product of its digits is 6400, while the sum is 32.

The square root of 51822851 is about 7198.8089987164. The cubic root of 51822851 is about 372.8267804929.

The spelling of 51822851 in words is "fifty-one million, eight hundred twenty-two thousand, eight hundred fifty-one".