54972457 has 2 divisors, whose sum is σ = 54972458. Its totient is φ = 54972456.

The previous prime is 54972443. The next prime is 54972481. The reversal of 54972457 is 75427945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37197801 + 17774656 = 6099^2 + 4216^2 .

It is a cyclic number.

It is not a de Polignac number, because 54972457 - 2⁷ = 54972329 is a prime.

It is not a weakly prime, because it can be changed into another prime (54972497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27486228 + 27486229.

It is an arithmetic number, because the mean of its divisors is an integer number (27486229).

Almost surely, 2^54972457 is an apocalyptic number.

It is an amenable number.

54972457 is a deficient number, since it is larger than the sum of its proper divisors (1).

54972457 is an equidigital number, since it uses as much as digits as its factorization.

54972457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 54972457 is about 7414.3413058747. The cubic root of 54972457 is about 380.2317538281.

The spelling of 54972457 in words is "fifty-four million, nine hundred seventy-two thousand, four hundred fifty-seven".