425286861 has 32 divisors (see below), whose sum is σ = 622510080. Its totient is φ = 257256000.

The previous prime is 425286853. The next prime is 425286889. The reversal of 425286861 is 168682524.

It is not a de Polignac number, because 425286861 - 2³ = 425286853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425286811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177276 + ... + 179658.

It is an arithmetic number, because the mean of its divisors is an integer number (19453440).

Almost surely, 2^425286861 is an apocalyptic number.

It is an amenable number.

425286861 is a deficient number, since it is larger than the sum of its proper divisors (197223219).

425286861 is a wasteful number, since it uses less digits than its factorization.

425286861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537.

The product of its digits is 184320, while the sum is 42.

The square root of 425286861 is about 20622.4843556735. The cubic root of 425286861 is about 752.0164174447.

The spelling of 425286861 in words is "four hundred twenty-five million, two hundred eighty-six thousand, eight hundred sixty-one".