54977945 has 8 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 39983920.

The previous prime is 54977933. The next prime is 54977947.

54977945 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 54977945 - 2¹⁶ = 54912409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54977893 and 54977902.

It is not an unprimeable number, because it can be changed into a prime (54977947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499745 + ... + 499854.

It is an arithmetic number, because the mean of its divisors is an integer number (8996400).

Almost surely, 2^54977945 is an apocalyptic number.

54977945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54977945 is a deficient number, since it is larger than the sum of its proper divisors (16993255).

54977945 is a wasteful number, since it uses less digits than its factorization.

54977945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999615.

The product of its digits is 1587600, while the sum is 50.

The square root of 54977945 is about 7414.7113902026. The cubic root of 54977945 is about 380.2444064821.

The spelling of 54977945 in words is "fifty-four million, nine hundred seventy-seven thousand, nine hundred forty-five".