54902689 has 2 divisors, whose sum is σ = 54902690. Its totient is φ = 54902688.

The previous prime is 54902677. The next prime is 54902719. The reversal of 54902689 is 98620945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49238289 + 5664400 = 7017^2 + 2380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54902689 is a prime.

It is not a weakly prime, because it can be changed into another prime (54902629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27451344 + 27451345.

It is an arithmetic number, because the mean of its divisors is an integer number (27451345).

Almost surely, 2^54902689 is an apocalyptic number.

It is an amenable number.

54902689 is a deficient number, since it is larger than the sum of its proper divisors (1).

54902689 is an equidigital number, since it uses as much as digits as its factorization.

54902689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 54902689 is about 7409.6348762945. The cubic root of 54902689 is about 380.0708293640.

The spelling of 54902689 in words is "fifty-four million, nine hundred two thousand, six hundred eighty-nine".