54357557 has 2 divisors, whose sum is σ = 54357558. Its totient is φ = 54357556.

The previous prime is 54357553. The next prime is 54357559. The reversal of 54357557 is 75575345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54037201 + 320356 = 7351^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 54357557 - 2² = 54357553 is a prime.

Together with 54357559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54357553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27178778 + 27178779.

It is an arithmetic number, because the mean of its divisors is an integer number (27178779).

Almost surely, 2^54357557 is an apocalyptic number.

It is an amenable number.

54357557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54357557 is an equidigital number, since it uses as much as digits as its factorization.

54357557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367500, while the sum is 41.

The square root of 54357557 is about 7372.7577608382. The cubic root of 54357557 is about 378.8087278001.

The spelling of 54357557 in words is "fifty-four million, three hundred fifty-seven thousand, five hundred fifty-seven".