425866056 has 128 divisors (see below), whose sum is σ = 1354752000. Its totient is φ = 110591040.

The previous prime is 425866037. The next prime is 425866069. The reversal of 425866056 is 650668524.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 425865999 and 425866017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88201 + ... + 92903.

It is an arithmetic number, because the mean of its divisors is an integer number (10584000).

Almost surely, 2^425866056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425866056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677376000).

425866056 is an abundant number, since it is smaller than the sum of its proper divisors (928885944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425866056 is a wasteful number, since it uses less digits than its factorization.

425866056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 425866056 is about 20636.5223814479. The cubic root of 425866056 is about 752.3576510980.

The spelling of 425866056 in words is "four hundred twenty-five million, eight hundred sixty-six thousand, fifty-six".