51818342 has 8 divisors (see below), whose sum is σ = 79623432. Its totient is φ = 25277200.

The previous prime is 51818293. The next prime is 51818357. The reversal of 51818342 is 24381815.

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 = 51818299 and 51818308.

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, 315884 + ... + 316047.

It is an arithmetic number, because the mean of its divisors is an integer number (9952929).

Almost surely, 2^51818342 is an apocalyptic number.

51818342 is a deficient number, since it is larger than the sum of its proper divisors (27805090).

51818342 is a wasteful number, since it uses less digits than its factorization.

51818342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631974.

The product of its digits is 7680, while the sum is 32.

The square root of 51818342 is about 7198.4958150992. The cubic root of 51818342 is about 372.8159672148.

The spelling of 51818342 in words is "fifty-one million, eight hundred eighteen thousand, three hundred forty-two".