425402305 has 64 divisors (see below), whose sum is σ = 609638400. Its totient is φ = 282562560.

The previous prime is 425402297. The next prime is 425402323. The reversal of 425402305 is 503204524.

It is not a de Polignac number, because 425402305 - 2³ = 425402297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425402305.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1451739 + ... + 1452031.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2^425402305 is an apocalyptic number.

It is an amenable number.

425402305 is a deficient number, since it is larger than the sum of its proper divisors (184236095).

425402305 is a wasteful number, since it uses less digits than its factorization.

425402305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 425402305 is about 20625.2831495715. The cubic root of 425402305 is about 752.0844561711.

Adding to 425402305 its reverse (503204524), we get a palindrome (928606829).

The spelling of 425402305 in words is "four hundred twenty-five million, four hundred two thousand, three hundred five".