51122347 has 8 divisors (see below), whose sum is σ = 51685200. Its totient is φ = 50562720.

The previous prime is 51122341. The next prime is 51122359. The reversal of 51122347 is 74322115.

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 a de Polignac number, because none of the positive numbers 2^k-51122347 is a prime.

It is a super-2 number, since 2×51122347² = 5226988725576818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122341) 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, 43072 + ... + 44242.

It is an arithmetic number, because the mean of its divisors is an integer number (6460650).

Almost surely, 2^51122347 is an apocalyptic number.

51122347 is a deficient number, since it is larger than the sum of its proper divisors (562853).

51122347 is a wasteful number, since it uses less digits than its factorization.

51122347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its digits is 1680, while the sum is 25.

The square root of 51122347 is about 7149.9893006913. The cubic root of 51122347 is about 371.1392860277.

The spelling of 51122347 in words is "fifty-one million, one hundred twenty-two thousand, three hundred forty-seven".