425424073 has 2 divisors, whose sum is σ = 425424074. Its totient is φ = 425424072.

The previous prime is 425424049. The next prime is 425424091. The reversal of 425424073 is 370424524.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346071609 + 79352464 = 18603^2 + 8908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425424073 is a prime.

It is not a weakly prime, because it can be changed into another prime (425424023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212712036 + 212712037.

It is an arithmetic number, because the mean of its divisors is an integer number (212712037).

Almost surely, 2^425424073 is an apocalyptic number.

It is an amenable number.

425424073 is a deficient number, since it is larger than the sum of its proper divisors (1).

425424073 is an equidigital number, since it uses as much as digits as its factorization.

425424073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 425424073 is about 20625.8108446674. The cubic root of 425424073 is about 752.0972841028.

Adding to 425424073 its reverse (370424524), we get a palindrome (795848597).

The spelling of 425424073 in words is "four hundred twenty-five million, four hundred twenty-four thousand, seventy-three".