254051557 has 2 divisors, whose sum is σ = 254051558. Its totient is φ = 254051556.

The previous prime is 254051543. The next prime is 254051563. The reversal of 254051557 is 755150452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253892356 + 159201 = 15934^2 + 399^2 .

It is a cyclic number.

It is not a de Polignac number, because 254051557 - 2⁷ = 254051429 is a prime.

It is a super-2 number, since 2×254051557² = 129084387228248498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254051507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127025778 + 127025779.

It is an arithmetic number, because the mean of its divisors is an integer number (127025779).

Almost surely, 2^254051557 is an apocalyptic number.

It is an amenable number.

254051557 is a deficient number, since it is larger than the sum of its proper divisors (1).

254051557 is an equidigital number, since it uses as much as digits as its factorization.

254051557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35000, while the sum is 34.

The square root of 254051557 is about 15938.9948553853. The cubic root of 254051557 is about 633.3453995547.

It can be divided in two parts, 25405 and 1557, that added together give a palindrome (26962).

The spelling of 254051557 in words is "two hundred fifty-four million, fifty-one thousand, five hundred fifty-seven".