425424049 has 2 divisors, whose sum is σ = 425424050. Its totient is φ = 425424048.

The previous prime is 425424047. The next prime is 425424073. The reversal of 425424049 is 940424524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296941824 + 128482225 = 17232^2 + 11335^2 .

It is a cyclic number.

It is not a de Polignac number, because 425424049 - 2¹ = 425424047 is a prime.

Together with 425424047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (425424047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212712024 + 212712025.

It is an arithmetic number, because the mean of its divisors is an integer number (212712025).

Almost surely, 2^425424049 is an apocalyptic number.

It is an amenable number.

425424049 is a deficient number, since it is larger than the sum of its proper divisors (1).

425424049 is an equidigital number, since it uses as much as digits as its factorization.

425424049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 425424049 is about 20625.8102628721. The cubic root of 425424049 is about 752.0972699598.

The spelling of 425424049 in words is "four hundred twenty-five million, four hundred twenty-four thousand, forty-nine".