51814946 has 8 divisors (see below), whose sum is σ = 82294380. Its totient is φ = 24383488.

The previous prime is 51814937. The next prime is 51814949. The reversal of 51814946 is 64941815.

It can be written as a sum of positive squares in 2 ways, for example, as 51681721 + 133225 = 7189^2 + 365^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51814949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761951 + ... + 762018.

Almost surely, 2^51814946 is an apocalyptic number.

51814946 is a deficient number, since it is larger than the sum of its proper divisors (30479434).

51814946 is a wasteful number, since it uses less digits than its factorization.

51814946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523988.

The product of its digits is 34560, while the sum is 38.

The square root of 51814946 is about 7198.2599286216. The cubic root of 51814946 is about 372.8078226683.

The spelling of 51814946 in words is "fifty-one million, eight hundred fourteen thousand, nine hundred forty-six".