54951109 has 4 divisors (see below), whose sum is σ = 55437516. Its totient is φ = 54464704.

The previous prime is 54951107. The next prime is 54951121. The reversal of 54951109 is 90115945.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 25553025 = 5422^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 54951109 - 2¹ = 54951107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54951101) 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, 243034 + ... + 243259.

It is an arithmetic number, because the mean of its divisors is an integer number (13859379).

Almost surely, 2^54951109 is an apocalyptic number.

It is an amenable number.

54951109 is a deficient number, since it is larger than the sum of its proper divisors (486407).

54951109 is a wasteful number, since it uses less digits than its factorization.

54951109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486406.

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

The square root of 54951109 is about 7412.9015236950. The cubic root of 54951109 is about 380.1825277314.

The spelling of 54951109 in words is "fifty-four million, nine hundred fifty-one thousand, one hundred nine".