54963509 has 2 divisors, whose sum is σ = 54963510. Its totient is φ = 54963508.

The previous prime is 54963481. The next prime is 54963521. The reversal of 54963509 is 90536945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 3912484 = 7145^2 + 1978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54963509 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54963569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27481754 + 27481755.

It is an arithmetic number, because the mean of its divisors is an integer number (27481755).

Almost surely, 2^54963509 is an apocalyptic number.

It is an amenable number.

54963509 is a deficient number, since it is larger than the sum of its proper divisors (1).

54963509 is an equidigital number, since it uses as much as digits as its factorization.

54963509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 54963509 is about 7413.7378561695. The cubic root of 54963509 is about 380.2111222941.

The spelling of 54963509 in words is "fifty-four million, nine hundred sixty-three thousand, five hundred nine".