425166401 has 16 divisors (see below), whose sum is σ = 496248000. Its totient is φ = 360158400.

The previous prime is 425166397. The next prime is 425166403. The reversal of 425166401 is 104661524.

It is a cyclic number.

It is not a de Polignac number, because 425166401 - 2² = 425166397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425166403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3926 + ... + 29423.

It is an arithmetic number, because the mean of its divisors is an integer number (31015500).

Almost surely, 2^425166401 is an apocalyptic number.

It is an amenable number.

425166401 is a deficient number, since it is larger than the sum of its proper divisors (71081599).

425166401 is a wasteful number, since it uses less digits than its factorization.

425166401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33440.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 425166401 is about 20619.5635501821. The cubic root of 425166401 is about 751.9454093322.

The spelling of 425166401 in words is "four hundred twenty-five million, one hundred sixty-six thousand, four hundred one".