51054919 has 8 divisors (see below), whose sum is σ = 53884080. Its totient is φ = 48240000.

The previous prime is 51054901. The next prime is 51054929. The reversal of 51054919 is 91945015.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51054919 - 2¹¹ = 51052871 is a prime.

It is a super-2 number, since 2×51054919² = 5213209508193122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51054929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (6735510).

Almost surely, 2^51054919 is an apocalyptic number.

51054919 is a deficient number, since it is larger than the sum of its proper divisors (2829161).

51054919 is a wasteful number, since it uses less digits than its factorization.

51054919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 51054919 is about 7145.2724930544. The cubic root of 51054919 is about 370.9760424127.

The spelling of 51054919 in words is "fifty-one million, fifty-four thousand, nine hundred nineteen".