54897945 has 16 divisors (see below), whose sum is σ = 88143552. Its totient is φ = 29176640.

The previous prime is 54897937. The next prime is 54897949. The reversal of 54897945 is 54979845.

54897945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54897945 - 2³ = 54897937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54897949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851 + ... + 10640.

It is an arithmetic number, because the mean of its divisors is an integer number (5508972).

Almost surely, 2^54897945 is an apocalyptic number.

It is an amenable number.

54897945 is a deficient number, since it is larger than the sum of its proper divisors (33245607).

54897945 is a wasteful number, since it uses less digits than its factorization.

54897945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12792.

The product of its digits is 1814400, while the sum is 51.

The square root of 54897945 is about 7409.3147456428. The cubic root of 54897945 is about 380.0598820681.

The spelling of 54897945 in words is "fifty-four million, eight hundred ninety-seven thousand, nine hundred forty-five".