54252561 has 16 divisors (see below), whose sum is σ = 82344960. Its totient is φ = 31450320.

The previous prime is 54252557. The next prime is 54252563. The reversal of 54252561 is 16525245.

54252561 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 54252561 - 2² = 54252557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54252563) 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, 34981 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (5146560).

Almost surely, 2^54252561 is an apocalyptic number.

It is an amenable number.

54252561 is a deficient number, since it is larger than the sum of its proper divisors (28092399).

54252561 is a wasteful number, since it uses less digits than its factorization.

54252561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71516.

The product of its digits is 12000, while the sum is 30.

The square root of 54252561 is about 7365.6337812845. The cubic root of 54252561 is about 378.5646707366.

The spelling of 54252561 in words is "fifty-four million, two hundred fifty-two thousand, five hundred sixty-one".