51144546 has 8 divisors (see below), whose sum is σ = 102289104. Its totient is φ = 17048180.

The previous prime is 51144539. The next prime is 51144581. The reversal of 51144546 is 64544115.

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

51144546 is an admirable number.

It is a super-2 number, since 2×51144546² = 5231529171092232, which contains 22 as substring.

It is a Curzon 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, 4262040 + ... + 4262051.

It is an arithmetic number, because the mean of its divisors is an integer number (12786138).

Almost surely, 2^51144546 is an apocalyptic number.

51144546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51144546 is a wasteful number, since it uses less digits than its factorization.

51144546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524096.

The product of its digits is 9600, while the sum is 30.

The square root of 51144546 is about 7151.5415121497. The cubic root of 51144546 is about 371.1929985380.

The spelling of 51144546 in words is "fifty-one million, one hundred forty-four thousand, five hundred forty-six".