54717557 has 2 divisors, whose sum is σ = 54717558. Its totient is φ = 54717556.

The previous prime is 54717527. The next prime is 54717563. The reversal of 54717557 is 75571745.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50112241 + 4605316 = 7079^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 54717557 - 2⁸ = 54717301 is a prime.

It is a super-2 number, since 2×54717557² = 5988022088096498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54717517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27358778 + 27358779.

It is an arithmetic number, because the mean of its divisors is an integer number (27358779).

Almost surely, 2^54717557 is an apocalyptic number.

It is an amenable number.

54717557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54717557 is an equidigital number, since it uses as much as digits as its factorization.

54717557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171500, while the sum is 41.

The square root of 54717557 is about 7397.1316738314. The cubic root of 54717557 is about 379.6431483710.

The spelling of 54717557 in words is "fifty-four million, seven hundred seventeen thousand, five hundred fifty-seven".