54072945 has 24 divisors (see below), whose sum is σ = 93997800. Its totient is φ = 28755456.

The previous prime is 54072919. The next prime is 54072979. The reversal of 54072945 is 54927045.

54072945 is a `hidden beast` number, since 540 + 72 + 9 + 45 = 666.

54072945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9437184 + 44635761 = 3072^2 + 6681^2 .

It is not a de Polignac number, because 54072945 - 2⁵ = 54072913 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15961 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (3916575).

Almost surely, 2^54072945 is an apocalyptic number.

It is an amenable number.

54072945 is a deficient number, since it is larger than the sum of its proper divisors (39924855).

54072945 is a wasteful number, since it uses less digits than its factorization.

54072945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 54072945 is about 7353.4308319314. The cubic root of 54072945 is about 378.1464327264.

The spelling of 54072945 in words is "fifty-four million, seventy-two thousand, nine hundred forty-five".