54783557 has 2 divisors, whose sum is σ = 54783558. Its totient is φ = 54783556.

The previous prime is 54783527. The next prime is 54783587. The reversal of 54783557 is 75538745.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (54783527) and next prime (54783587).

It can be written as a sum of positive squares in only one way, i.e., 27888961 + 26894596 = 5281^2 + 5186^2 .

It is a cyclic number.

It is not a de Polignac number, because 54783557 - 2⁸ = 54783301 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 (54783527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27391778 + 27391779.

It is an arithmetic number, because the mean of its divisors is an integer number (27391779).

Almost surely, 2^54783557 is an apocalyptic number.

It is an amenable number.

54783557 is a deficient number, since it is larger than the sum of its proper divisors (1).

54783557 is an equidigital number, since it uses as much as digits as its factorization.

54783557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588000, while the sum is 44.

The square root of 54783557 is about 7401.5915180453. The cubic root of 54783557 is about 379.7957281620.

The spelling of 54783557 in words is "fifty-four million, seven hundred eighty-three thousand, five hundred fifty-seven".