54749857 has 2 divisors, whose sum is σ = 54749858. Its totient is φ = 54749856.

The previous prime is 54749831. The next prime is 54749861. The reversal of 54749857 is 75894745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48874081 + 5875776 = 6991^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 54749857 - 2¹⁹ = 54225569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54749857.

It is not a weakly prime, because it can be changed into another prime (54749897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27374928 + 27374929.

It is an arithmetic number, because the mean of its divisors is an integer number (27374929).

Almost surely, 2^54749857 is an apocalyptic number.

It is an amenable number.

54749857 is a deficient number, since it is larger than the sum of its proper divisors (1).

54749857 is an equidigital number, since it uses as much as digits as its factorization.

54749857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 54749857 is about 7399.3146304236. The cubic root of 54749857 is about 379.7178353167.

The spelling of 54749857 in words is "fifty-four million, seven hundred forty-nine thousand, eight hundred fifty-seven".