54071890 has 8 divisors (see below), whose sum is σ = 97329420. Its totient is φ = 21628752.

The previous prime is 54071879. The next prime is 54071893. The reversal of 54071890 is 9817045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53743561 + 328329 = 7331^2 + 573^2 .

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 (54071893) 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 3 ways as a sum of consecutive naturals, for example, 2703585 + ... + 2703604.

Almost surely, 2^54071890 is an apocalyptic number.

54071890 is a deficient number, since it is larger than the sum of its proper divisors (43257530).

54071890 is a wasteful number, since it uses less digits than its factorization.

54071890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407196.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 54071890 is about 7353.3590963586. The cubic root of 54071890 is about 378.1439734122.

The spelling of 54071890 in words is "fifty-four million, seventy-one thousand, eight hundred ninety".