425425420925 has 24 divisors (see below), whose sum is σ = 546190017792. Its totient is φ = 328366368000.

The previous prime is 425425420909. The next prime is 425425420957. The reversal of 425425420925 is 529024524524.

It is not a de Polignac number, because 425425420925 - 2⁴ = 425425420909 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572684 + ... + 1085733.

It is an arithmetic number, because the mean of its divisors is an integer number (22757917408).

Almost surely, 2^425425420925 is an apocalyptic number.

It is an amenable number.

425425420925 is a deficient number, since it is larger than the sum of its proper divisors (120764596867).

425425420925 is a wasteful number, since it uses less digits than its factorization.

425425420925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658789 (or 1658784 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 425425420925 in words is "four hundred twenty-five billion, four hundred twenty-five million, four hundred twenty thousand, nine hundred twenty-five".