425254243 has 2 divisors, whose sum is σ = 425254244. Its totient is φ = 425254242.

The previous prime is 425254223. The next prime is 425254327. The reversal of 425254243 is 342452524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425254243 - 2²⁵ = 391699811 is a prime.

It is not a weakly prime, because it can be changed into another prime (425254223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212627121 + 212627122.

It is an arithmetic number, because the mean of its divisors is an integer number (212627122).

Almost surely, 2^425254243 is an apocalyptic number.

425254243 is a deficient number, since it is larger than the sum of its proper divisors (1).

425254243 is an equidigital number, since it uses as much as digits as its factorization.

425254243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 31.

The square root of 425254243 is about 20621.6935046567. The cubic root of 425254243 is about 751.9971912855.

The spelling of 425254243 in words is "four hundred twenty-five million, two hundred fifty-four thousand, two hundred forty-three".