51149454 has 8 divisors (see below), whose sum is σ = 102298920. Its totient is φ = 17049816.

The previous prime is 51149453. The next prime is 51149459. The reversal of 51149454 is 45494115.

51149454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

51149454 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51149453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4262449 + ... + 4262460.

It is an arithmetic number, because the mean of its divisors is an integer number (12787365).

Almost surely, 2^51149454 is an apocalyptic number.

51149454 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.

51149454 is a wasteful number, since it uses less digits than its factorization.

51149454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8524914.

The product of its digits is 14400, while the sum is 33.

The square root of 51149454 is about 7151.8846467208. The cubic root of 51149454 is about 371.2048717946.

The spelling of 51149454 in words is "fifty-one million, one hundred forty-nine thousand, four hundred fifty-four".