51406622 has 8 divisors (see below), whose sum is σ = 77354136. Its totient is φ = 25621912.

The previous prime is 51406601. The next prime is 51406637. The reversal of 51406622 is 22660415.

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

It is a junction number, because it is equal to n+sod(n) for n = 51406591 and 51406600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39908 + ... + 41175.

It is an arithmetic number, because the mean of its divisors is an integer number (9669267).

Almost surely, 2^51406622 is an apocalyptic number.

51406622 is a deficient number, since it is larger than the sum of its proper divisors (25947514).

51406622 is a wasteful number, since it uses less digits than its factorization.

51406622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81402.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51406622 is about 7169.8411418943. The cubic root of 51406622 is about 371.8259437397.

The spelling of 51406622 in words is "fifty-one million, four hundred six thousand, six hundred twenty-two".