418425257 has 2 divisors, whose sum is σ = 418425258. Its totient is φ = 418425256.

The previous prime is 418425247. The next prime is 418425299. The reversal of 418425257 is 752524814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311840281 + 106584976 = 17659^2 + 10324^2 .

It is a cyclic number.

It is not a de Polignac number, because 418425257 - 2¹⁴ = 418408873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 418425257.

It is not a weakly prime, because it can be changed into another prime (418425247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209212628 + 209212629.

It is an arithmetic number, because the mean of its divisors is an integer number (209212629).

Almost surely, 2^418425257 is an apocalyptic number.

It is an amenable number.

418425257 is a deficient number, since it is larger than the sum of its proper divisors (1).

418425257 is an equidigital number, since it uses as much as digits as its factorization.

418425257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 38.

The square root of 418425257 is about 20455.4456563527. The cubic root of 418425257 is about 747.9501102255.

The spelling of 418425257 in words is "four hundred eighteen million, four hundred twenty-five thousand, two hundred fifty-seven".