254983657 has 2 divisors, whose sum is σ = 254983658. Its totient is φ = 254983656.

The previous prime is 254983637. The next prime is 254983661. The reversal of 254983657 is 756389452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239135296 + 15848361 = 15464^2 + 3981^2 .

It is a cyclic number.

It is not a de Polignac number, because 254983657 - 2⁷ = 254983529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254983657.

It is not a weakly prime, because it can be changed into another prime (254983627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127491828 + 127491829.

It is an arithmetic number, because the mean of its divisors is an integer number (127491829).

Almost surely, 2^254983657 is an apocalyptic number.

It is an amenable number.

254983657 is a deficient number, since it is larger than the sum of its proper divisors (1).

254983657 is an equidigital number, since it uses as much as digits as its factorization.

254983657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The square root of 254983657 is about 15968.2076952925. The cubic root of 254983657 is about 634.1190230221.

The spelling of 254983657 in words is "two hundred fifty-four million, nine hundred eighty-three thousand, six hundred fifty-seven".