54911945 has 8 divisors (see below), whose sum is σ = 71884800. Its totient is φ = 39935920.

The previous prime is 54911893. The next prime is 54911951.

54911945 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 54911945 - 2¹² = 54907849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54911899 and 54911908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499145 + ... + 499254.

It is an arithmetic number, because the mean of its divisors is an integer number (8985600).

Almost surely, 2^54911945 is an apocalyptic number.

54911945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54911945 is a deficient number, since it is larger than the sum of its proper divisors (16972855).

54911945 is a wasteful number, since it uses less digits than its factorization.

54911945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998415.

The product of its digits is 32400, while the sum is 38.

The square root of 54911945 is about 7410.2594421518. The cubic root of 54911945 is about 380.0921867753.

The spelling of 54911945 in words is "fifty-four million, nine hundred eleven thousand, nine hundred forty-five".